MU-NLPC/Calc-aqua_rat huggingface dataset:
Oil cans x and y are right circular cylinders and the height and radius of y are each 10 times those of x. If the oil in can x filled to capacity sells for $1, how much does the oil in y sell for if y is only half filled? Choose the correct choice from the following choices:
A) $400	B) $450	C) $500	D) $550	E) $600

Solution: formula for vol of a cyl is PI*r^2*h   so Vy = 1000*Vy   y when half filled will cost 500 times x so ans is $500
Answer: C
If n divided by 11 has a remainder of 1, what is the remainder when 5 times n is divided by 11?	Select the correct option
A) 1 B) 2 C) 3 D) 9 E) 5

Solution: As per question => N=11P+1 for some integer p   hence 5N => 55Q + 5 => remainder => 5 for some integer Q   hence 5
Answer: E
At the moment there are 54,000 tagged birds in a certain wildlife refuge. If exactly 20 percent of all birds in the refuge are tagged, what percent of the untagged birds must be tagged so that half of all birds in the refuge are tagged?
Pick: A) 36.95 B) 37.5 C) 34.44 D) 33.91 E) 50

Solution: All birds = 54000   Currently Tagged = 54000 * 20/100= 
54000 * 20/100 = 10_800
10800   So Untagged birds= 54000 - 10800= 
54000 - 10800 = 43_200
43200   Half of all birds= 27000   The number of birds to be tagged to make half of all birds tagged = 27000 - 10800= 
27000 - 10800 = 16_200
16200   So now the question remains - 16200 is how much percentage of untagged birds (43200)= 16200 * 100 /43200= 
16200 * 100 /43200 = 75/2 = around 37.5
37.5 %   Answer (37.5)
Answer: B
How many kilograms of sugar costing Rs. 9 per kg must be mixed with 27kg of sugar costing Rs.7 per kg so that there may be gain of 10% by selling the mixture at Rs.9.24 per kg?
Answers.
A) 60 kg  B) 63 kg  C) 50 kg  D) 77 kg  E) None of these

Solution: Explanation :   Let the rate of second quality be Rs x per Kg.   Step 1 :   S.P of 1 kg of mixture = Rs. 9.24   Gain = 10%   C.P of 1 kg of mixture =[100/(100+10)×9.24].   => Rs. 8.40.   Thus, the mean price = Rs. 8.40.   Step 2 :   C.P of 1 kg of sugar of 1st kind = 900p   C.P of 1 kg of sugar of 2nd kind = 700p   Mean price = 840p   By the rule of alligation, we have:   C.P. of 1kg of C.P. of 1kg of   sugar of 1st sugar of 2nd   kind (900p) kind (700p)   \ /   Mean Price   (840p)   / \   840 - 700 : 900 - 840   (140) (60)   => Required ratio = 140 : 60 = 7 : 3.   Step 3:   Let, x kg of sugar of 1st kind be mixed with 27 kg of 2nd kind, then   =>7:3=x:27.   =>7/3=x/27.   =>x=(7/3)x 27.   =>x=63.   Answer : 63 kg
Answer: B
A basket has 5 apples and 4 oranges. Three fruits are picked at random. The probability that at least 2 apples are picked is?
Choose the correct choice from the following: A) 25/42 B) 25/46 C) 25/41 D) 25/48 E) 25/32

Solution: Total fruits = 9   Since there must be at least two apples,   (⁵C₂ * ⁴C₁)/⁹C₃ + ⁵C₃/⁹C₃   =25/42.   25/42nswer: 25/42
Answer: A
The length of the rectangular field is double its width. Inside the field there is square shaped pond 9m long. If the area of the pond is 1/8 of the area of the field. What is the length of the field?	Choices.
A) 54	B) 36	C) 75	D) 28	E) 11

Solution: A/8 = 9 * 9 => A = 9 * 9 * 8   x * 2x =9 * 9 * 8   x = 18 => 2x = 36   Answer:36
Answer: B
A reduction of 20% in the price of salt enables a lady to obtain 10kgs more for Rs.100, find the original price per kg?  Choose the correct option
A) 2.9 B) 2.6 C) 2.5 D) 2.4 E) 2.1

Solution: 100*(20/100)= 
100*(20/100) = 20
20 --- 10   ? --- 1=> Rs.2   100 --- 80   ? --- 2 => Rs.2.5   Answer:2.5
Answer: C
A factory produces 5500 toys per week. If the workers at this factory work 5 days a week and if these workers make the same number of toys everyday, how many toys are produced each day?
Choose the correct answer.
A) 1100 toys B) 5487 toys C) 6113 toys D) 2354 toys E) 1375 toys

Solution: To find the number of toys produced every day, we divide the total number of toys produced in one week (of 5 days) by 5.   5500 /5= 
5500 /5 = 1_100
1100 toys   correct answer 1100 toys
Answer: A
8 friends decides to eat pizza. 4 friends eat type 1 pizza which cost 100 each. Remaining friend buy pizza having off on it and saves 100 and each of them pay equal money .Total bill is 800. what is % of off on each pizza.	Choose the most appropriate option
A) 20%	B) 30%	C) 10%	D) 15%	E) 25%

Solution: Solution: A.8 friend = 800. per friend 100. Saves 100 and each of them paid 100 and saved   100/4= 
  100/4 = 25
25. so pizza had a 20% off
Answer: A
A family made a down payment of $55 and borrowed the balance on a set of encyclopedias that cost $400. The balance with interest was paid in 23 monthly payments of $16 each and a final payment of $9. The amount of interest paid was what percent of the amount borrowed?
Choose one.
A) 6%  B) 8%  C) 7.7%  D) 10%  E) 5%

Solution: borrowings = 400-50= 
400-50 = 350
350   total pmt= 23x16 + 9 = 377   so int = 377 - 350= 
377 - 350 = 27
27   interest in terms of borrowing= 27/350 = 7.7%   Answer is 7.7%
Answer: C
The average salary of all the workers in a workshop is Rs. 8000. The average salary of 9 technicians is Rs. 18000 and the average salary of the rest is Rs. 6000. The total number of workers in the workshop is :  Choose one.
A) 22  B) 54  C) 88  D) 37  E) 29

Solution: Explanation:   Lot the total number of workers be v Then,   8OOOv = (18000 * 9) + 6000 (v - 9) <=> 2000v = 108000 <=> v = 54   Answer: 54) 54
Answer: B
which of the following could be the greatest common factor of positive integers 10 and 15 ? I) 5 II) 4 III) 2
Select the correct option:
A) II only	B) I only	C) III only	D) I,II only	E) I,III only

Solution: 10=2*5   15=3*5   GCF =5   Answer : I only
Answer: B
During 2001, a stock lost 90 percent of its value. During the following year, the stock's value increased by 200 percent. Which of the following is the percent change in the stock's value during those two years?  Choose the correct choice.
A) 70 percent decrease B) 40 percent decrease C) 20 percent increase D) 60 percent increase E) 140 percent increase

Solution: Let the value of the stock in 2000 be 100, then in 2001 its value would be 100*(1-90/100)=100*0.1= 
100*0.1 = 10
10 and in 2002 its value would be   10*(1+200/100)= 
  10*(1+200/100) = 30
30. Hence during those two years the value of the stock decreased from 100 to 30, so by 70%.   70 percent decreasenswer: 70 percent decrease.
Answer: A
The H.C.F. and L.C.M. of two numbers are 12 and 5040 respectively If one of the numbers is 144, find the other number
Answers: A) 400 B) 256 C) 120 D) 420 E) None of these

Solution: Explanation:   Solve this question by using below formula.   Product of 2 numbers = product of their HCF and LCM   144 * x = 12 * 5040   x = (12*5040)/144= 
(12*5040)/144 = 420
420   Option 420
Answer: D
A man sitting in a train which is traveling at 60 kmph observes that a goods train, traveling in opposite direction, takes 12 seconds to pass him. If the goods train is 300 m long, find its speed
Choose the correct choice:  A) 52 kmph  B) 56 kmph  C) 58 kmph  D) 30 kmph  E) 34 kmph

Solution: Explanation:   Relative speed = 300/12 m / sec = ((300/12)×(18/5)) kmph = 90 kmph.   Speed of goods train = (90 - 60)= 
(90 - 60) = 30
30 kmph   Answer: Option 30 kmph
Answer: D
A coin has two sides. One side has the number 1 on it and the other side has the number 2 on it. If the coin is flipped four times what is the probability that the sum of the numbers on the landing side of the coin will be greater than 4?
Choose the most appropriate option
A) 3/16 B) 15/16 C) 11/16 D) 5/8 E) 3/4

Solution: There are 16 possible outcomes and only one (1111) has a sum equal or less than 4.   P(the sum is greater than 4) = 1 - 1/16 = 15/16   The answer is 15/16.
Answer: B
Jim is able to sell a hand-carved statue for $670 which was a 25% profit over his cost. How much did the statue originally cost him?	Options
A) $496.30 B) $536.00 C) $555.40 D) $574.90 E) $588.20

Solution: 670 = 1.25*X   X = 670/1.25= 
670/1.25 = 536
536   $536, which is ($536.00).
Answer: B
A train crosses a tunnel of 1200 m in 45 sec, same train crosses another platform of length 180 m in 15 sec. then find the length of the train?  Choose the correct choice from the following:
A) 350m
B) 400m
C) 272m
D) 330m
E) 267m

Solution: Length of the train be ‘X’   (X + 1200)/45 = (X + 180)/15   X + 1200 = 3X + 540   2X = 660   X = 330m   Answer: 330m
Answer: D
5:3 is the present ratio between the ages of Rose and Jennie. In 5 years time Rose will be 20. What is the present age of Jennie?  Choose the correct choice from the following options.
A) 9
B) 5
C) 4
D) 7
E) 9

Solution: Let the present ages of Rose and Jennie be 5x years and 3x years respectively   5x+5 = 20   5x = 15   x = 3   Jennie's age = 3x = 9 years   Answer is 9
Answer: E
A group of men decided to do a work in 55 days, but 15 of them became absent. If the rest of the group did the work in 60 days, Find the original number of men? Pick:
A) 180	B) 150	C) 140	D) 100	E) 25

Solution: Original number of men = 15*60 / (60-55)= 
15*60 / (60-55) = 180
180   180nswer is 180
Answer: A
A group consists of 4 couples in which each of the 4 boys have one girl friend.In how many ways they can be arranged in a straight line such that boys and girls occupies alternate positions? Select.
A) 1142	B) 1152	C) 1252	D) 1342	E) 1424

Solution: Total positions are 8.   In that boys can be arranged in 4 places and girls can be arranged in 4 places and hence this can be done in 2 ways.   i.e => 4! * 4! * 2 = 24*24*2= 
24*24*2 = 1_152
1152.   ANSWER:1152
Answer: B
What is the probability of rolling a total of 9 with a single roll of two fair six-sided dice, each with the distinct numbers 1 through 6 on each side?  Choose the correct choice:
A) 1/12  B) 1/6  C) 1/9  D) 1/3  E) 1/2

Solution: Totalsample spacefrom two fair six-sided dice is 36.   There are six possible ways to be 7 i.e. (3+6), (4+5), (5+4), (6+3)   So, total probability is 4/36 or 1/9.   Answer is 1/9.
Answer: C
What is the angle of degree suspended when two hands of clock showing the time 2.30.	Choose the correct choice from the following answers
A) 95 degree  B) 105 degree  C) 115 degree  D) 125 degree  E) 135 degree

Solution: angle between 2 and 6 =30*4= 
30*4 = 120
120   andin half an hour hour hand moves forward by  30/2= 
 30/2 = 15
15 degree   hence required ans= 120-15= 
120-15 = 105
105 degree   ANSWER:105 degree
Answer: B
If m and n are positive integers and n ≠ 1, then mn(n −1) is	Choose the correct choice from the following choices:  A) m-n  B) m+n  C) mn  D) mn^2 -mn  E) mn^2

Solution: mn(n-1) = mn^2 -mn   Answer : mn^2 -mn
Answer: D
A man can swim in still water at 7.5 km/h, but takes twice as long to swim upstream than downstream. The speed of the stream is? Choose the correct choice from the following choices:  A) 1.7  B) 1.4  C) 1.1  D) 1.5  E) 2.5

Solution: M = 7.5   S = x   DS = 7.5 + x   US = 7.5 + x   7.5 + x = (7.5 - x)2   7.5 + x = 15 -2x   3x = 7.5   x = 2.5   Answer:2.5
Answer: E
Seema took a loan of 1800 with simple interest for as many years as the rate of interest. If she paid 162 as interest at the end of the loan period, what was the rate of interest?
Options
A) 4  B) 3  C) 5  D) Can not be determined  E) None

Solution: Explanation: Let rate = R% and time = R years.   Then, (1800 x R x R)/100 = 162   18RÂ² = 162   RÂ² = 9   R = 3.   Answer: 3
Answer: B
If J is the interest on K and K is the interest on L, the rate and time is the same on both the cases. What is the relation between J, K and L ?	Choose the correct choice from the following answers.
A) JxJ = KL
B) KxK= JL
C) LxL = JK
D) JKL = 1
E) None of these

Solution: Explanation:   Let the Time be 'N' and Rate be 'R'   J = (K x NR)/100 K = (L x NR)/100   J/K = NR/100 K/L = NR/100   J/K = K/L   K2= JL   ANSWER IS KxK= JL
Answer: B
P is 50% more efficient than Q. P can complete a work in 25 days. If P and Q work together, how many days will it take to complete the same work?  Choose the correct option
A) 11	B) 13	C) 15	D) 17	E) 19

Solution: The work done by P in 1 day = 1/25   Let work done by Q in 1 day = q   q × (150/100) = 1/25   q = 100/(25×150) = 10/(25×15)   The work done by P and Q in 1 day = 1/25 + 10/(25×15) = 25/(25×15)= 1/15   P and Q together can do the work in 15 days.   The answer is 15.
Answer: C
The distance between two cities A and B is 330 Km. A train starts from A at 8 a.m. and travel towards B at 60 km/hr. Another train starts from B at 9 a.m and travels towards A at 75 Km/hr. At what time do they meet? Choose the correct choice from the following choices:
A) 10 a.m
B) 09 a.m
C) 11 a.m
D) 05 a.m
E) 06 a.m

Solution: Explanation:   Suppose they meet x hrs after 8 a.m   then,   [Distance moved by first in x hrs] + [Distance moved by second in (x-1) hrs] = 330.   Therefore, 60x + 75(x-1) = 330.   => x=3.   So,they meet at (8+3) i.e, 11a.m.   Answer: 11 a.m
Answer: C
A set A consists of 7 consecutive odd integers. If the sum of 5 largest integers of set A is -185 what is the sum of the 5 smallest integers of set A? Choose the correct choice.
A) 165  B) 175  C) 195  D) 205  E) 215

Solution: Average of largest 5 = -185/5 =-37   So the largest numbers are -41, -39, -37, -35, -33   Now if we consider smallest 5, we have to eliminate last 2 numbers, which are -35 and -33   Notice here that the numbers are equally spaced.   So the average of smallest number will just shift 2 place to the left.   Avg= -41   Therefore, total = -41*5= -205   Answer:205
Answer: D
Four brothers Adam, Bill, Charles and David together contributed certain amount of money and purchased a car. The contribution made by Adam is half that of the total contribution made by the other three brothers, contribution made by Bill is one-fourth of the total contribution made by the other three brothers and the contribution made by Charles is two-third of the total contribution made by the other three brothers. If the total price of the car is $9750, find the contribution made by David. Select
A) $540  B) $580  C) $600  D) $650  E) $680

Solution: Given that A:(B+C+D)= 1:2.   Hence A contributed 1/3rd of the total price.   Given B:(A+C+D)=1:4   Hence B contributed 1/5th of the total price.   Given C:(A+B+D)=2:3   Hence C contributed 2/5th of the total price.   Thus the contribution made by A,B and C= 1/3+1/5+2/5=14/15   So, the remaining 1/15th of the price is contributed by David.   Hence David's contribution= 1/15×9750=$650.   The answer is $650.
Answer: D
In a game of 50 points; A can give B 5 points and C 15 points. Then how many points B can give C in a game of 90 ?  Choose the correct answer:
A) can give C 1 points  B) can give C 4 points  C) can give C 2 points  D) can give C 6 points  E) can give C 20 points

Solution: A: B = 50 : 45, A : C = 50 : 35.   B/C = ( B/ A * A/C) = (45 / 50 * 50 / 35) = 9/7 = 90 /70   Therefore ,In a game of 90, B can give C 20 points.   Answer is can give C 20 points.
Answer: E
If 1^3 + 2^3 + 3^3 +......+ 10^3 = 516 then the value of 2^3 + 4^3 + 63 + ..... + 203 is
Choose one.
A) 1032  B) 1030  C) 1034  D) 1035  E) 1036

Solution: 2(13 + 23 + 33 + ---------- + 103)   2 × 516 = 1032   1032
Answer: A
A train passes a station platform in 36 seconds and a man standing on the platform in 20 seconds. If the speed of the train is 54 km/hr, what is the length of the platform? Pick one
A) 248 m  B) 240 m  C) 277 m  D) 765 m  E) 176 m

Solution: Speed = (54 * 5/18) m/sec = 15 m/sec. Length of the train = (15 x 20)m = 300 m. Let the length of the platform be x meters. Then, (x + 300)/36 = 15 ==> x + 300 = 540 ==> x   = 240 m.   Answer: 240 m
Answer: B
Two numbers are respectively 20% and 50% more than a third number. The ratio of the two numbers is
Choose the correct choice from the following options.
A) 2:5	B) 3:5	C) 4:5	D) 6:5	E) 7:5

Solution: Explanation:   Let the third number be x.   First Number (120/100)*x = 6x/5   Second Number (150/100)*x = 3x/2   Ratio = 6x/5:3x/2   => 4:5   Option 4:5
Answer: C
Quentin's income is 60% less than Rex's income, and Ram's income is 25% less than Quentin's income. If Rex gave 60% of his income to Ram and 40% of his income to Quentin, Quentin's new income would be what fraction of Ram's new income?  Choose the correct answer.
A) 8/9 B) 11/12 C) 8/13 D) 11/13 E) 12/13

Solution: We can take some easy numbers and make calculations simpler.   Let R ( Rex's income) = 100   Q (Quentin's income) = 40%R = 40   S (Ram's income) = 75% Q = (3/4)*40= 
(3/4)*40 = 30
30   Now, if Rex gives 40% to Quentin --> Q= 40 + 40= 
40 + 40 = 80
80   60% given to Ram --> S= 30+60= 
30+60 = 90
90   The ratio is : Q/S= 80/90 = 8/9=8/9
Answer: A
On a certain road 10% of the motorists exceed the posted speed limit and receive speeding tickets, but 40% of the motorists who exceed the posted speed limit do not receive speeding tickets. What percent of the motorists on the road exceed the posted speed limit? Pick.
A) 10.5%	B) 12.5%	C) 15%	D) 22%	E) 16%

Solution: 0.1 M = 0.60 E   => E/M = 1/6 * 100 = 16%   So answer is E.   M - # of Motorists   16% - # of Motorists exceeding speed
Answer: E
In one hour, a boat goes 11 km/hr along the stream and 7 km/hr against the stream. The speed of the boat in still water (in km/hr) is: Choose the correct option:
A) 3 km/hr	B) 4 km/hr	C) 5 km/hr	D) 6 km/hr	E) 9 km/hr

Solution: Upstream relative speed is u + v=11km/hr   Downstream speed is u-v = 7   Where u = speed of boat in still water and v is speed of stream   Then adding two equations u+v + u-v =11+7   2u=18   Finally, u=9.   ANSW9 km/hrR : 9 km/hr
Answer: E
A watch is sold for Rs.440 cash or for Rs.200 cash down payment together with Rs.244 to be paid after one month. Find the rate of interest charged in the installment scheme. Select the correct option
A) 10%  B) 15%  C) 20%  D) 25%  E) None

Solution: Explanation:   Principal for the next month = 440 - 200= 
440 - 200 = 240
240   Amount paid after next month= 244   Therefore interest charged at Rs.240 = 240×1×R/12×100=4   Rate of interest (R) = 20% per annum   Answer 20%
Answer: C
The MegaTek Corporation is displaying its distribution of employees by department in a circle graph. The size of each sector of the graph representing a department is proportional to the percentage of total employees in that department. If the section of the circle graph representing the manufacturing department takes up 108° of the circle, what percentage of MegaTek employees are in manufacturing?  Choose the correct answer
A) 20%
B) 25%
C) 30%
D) 35%
E) 72%

Solution: ANSWER: 30%   108° divided by 360° equals 0.3, therefore the sector is equal to 30% of the total
Answer: C
Jagtap purchases 30 kg of wheat at the rate of 11.50 per kg and 20 kg of wheat at the rate of 14.25 per kg. He mixed the two and sold the mixture. Approximately at what price per kg should he sell the mixture to make 30 per cent profit? Choose the correct choice from the following answers:
A) 16.3  B) 18.2  C) 15.6  D) 14.8  E) 15.4

Solution: CP = 30 × 11.50 + 20 × 14.25 = 630   SP = 630 × 130⁄100 × 1⁄50 ≈ 16.30   16.3nswer 16.3
Answer: A
Ram professes to sell his goods at the cost price but he made use of 900 grms instead of a kg, what is the gain percent?	Answers
A) 11 1/8
B) 11 1/7
C) 11 1/9
D) 11 1/1
E) 11 1/2

Solution: 900 --- 100   100 --- ? => 11 1/9%.Answer: 11 1/9
Answer: C
There is a 20% chance that Lions will not win at all during the whole season. There is a 20% chance that Federer will not play at all in the whole season. What is the greatest possible probability that the Lions will win and Federer will play during the season?
Choose the correct answer.
A) A)55% B) B)60% C) C)70% D) D)72% E) E)80%

Solution: There is a 20% chance that Lions will not win at all during the whole season   We can infer that there is 80% chance Lions will win .   Similarly There is a 20% chance that Federer will not play at all in the whole season   We can also infer that there is 80% chance that Federer will play.   Answer 80%
Answer: E
If the C.I. on a sum for 2 years at 12 1/2 % per annum is Rs. 510, the S.I. on the same sum at the same rate for the same period of time is?
Choose the correct option:
A) 488
B) 485
C) 470
D) 480
E) 482

Solution: Let the sum be Rs. P. Then,   [P(1 + 25/(2 * 100))2 - P] = 510   P[(9/8)2 - 1] = 510.   Sum = Rs. 1920   So, S.I. = (1920 * 25 * 2) / (2 * 100) = Rs. 480.Answer: 480
Answer: D
In a group of 100 adults, 75 percent of the women are left-handed. If there are 11 right-handed women in the group, how many men are in the group?	Choose the correct choice:
A) 48	B) 52	C) 56	D) 60	E) 62

Solution: 12 left-haded women compose   100-75= 
  100-75 = 25
25% (or 1/4) of all women, so there are total of   4*11= 
  4*11 = 44
44 women --> 100-44=56 men.   Answer: 56. --  100-44= 
 --  100-44 = 56
56 men.   Answer: 56.
Answer: C
An unbiased die is tossed. Find the probability of getting a multiple of 3 Choose one:
A) 1/3 B) 2/3 C) 1 D) 4/3 E) 5/3

Solution: Here S={1,2,3,4,5,6}   Let E be the event of getting the multiple of 3   then ,E={3,6}   P(E)=n(E)/n(S)=2/6=1/3   answer option 1/3) 1/3.
Answer: A
A thief is noticed by a policeman from a distance of 200 m. The thief starts running and the policeman chases him. The thief and the policeman run at the rate of 10 km and 11 km per hour respectively. What is the distance between them after 6 minutes?	Select:
A) 100	B) 377	C) 399	D) 277	E) 271

Solution: Explanation:   Relative speed of the thief and policeman = (11 – 10) km/hr = 1 km/hr   Distance covered in 6 minutes = {\color{Blue} \left ( \frac{1}{60}\times 6 \right )} km = {\color{Blue} \frac{1}{10}} km = 100 m   {\color{Blue} \therefore } Distance between the thief and policeman = (200 – 100) m = 100 m.   100nswer: 100) 100 m
Answer: A
If Bob has $20 in his pocket and a bowl of ice creams sells for $5 and pizza sells for $12, which of the following COULD be true?
I. Bob can buy 4 bowls of ice cream.
II. Bob can buy 2 bowls of ice cream and pizza.
III. Bob can buy 3 bowls of ice cream and pizza.  Options
A) I only	B) I and II only	C) I and III only	D) II and III only	E) I, II and III

Solution: Let’s check each statement.   Statement I:Bob can buy 4 bowls of ice cream. the cost of one bowl of ice cream is $5, 4 bowls of ice cream will cost $ 5 * 4= 
 5 * 4 = 20
$20, in which case Statement I is be TRUE.   Statement II: Bob can buy 2 bowls of icecream and pizza. The cost of ice cream is $5 and pizza is $12, 2 bowls of ice cream will cost $ 5 * 2= 
 5 * 2 = 10
$10 and Pizza will cost $12. Total is $10 + $12 = $22 in which case Statement II can NEVER BE TRUE.   Statement III: Bob can buy 3 bowls of ice cream and pizza. 3 bowls of ice cream   10 +  12= 
  10 +  12 = 22
$22 in which case Statement II can NEVER BE TRUE.   Statement III: Bob can buy 3 bowls of ice cream and pizza. 3 bowls of ice cream= $5 * 3= 
5 * 3 = 15
$15 and pizza= $12. Total = $15 + $12 = $27, in which case Statement III ca NEVER BE TRUE.   Only Statement I is true.   So,the correct answer is I only15 +  12= 
15 +  12 = 27
$27, in which case Statement III ca NEVER BE TRUE.   Only Statement I is true.   So,the correct answer is I only
Answer: A
Two trains running in opposite directions cross a man standing on the platform in 27 seconds and 17 seconds respectively and they cross each other in 22 seconds. The ratio of their speeds is? Choose the correct choice from the following:
A) 3/1	B) 3/1	C) 1/1	D) 3/5	E) 5/2

Solution: Let the speeds of the two trains be x m/sec and y m/sec respectively. Then, length of the first train   = 27 x meters, and length of the second train   = 17 y meters. (27 x + 17 y) / (x + y) = 22 ==> 27 x + 17 y = 22 x + 22 y   ==> 5 x = 5 y ==> x/y   = 1/1.   Answer:1/1
Answer: C
An order was placed for the supply of a carper whose length and breadth were in the ratio of 3 : 2. Subsequently, the dimensions of the carpet were altered such that its length and breadth were in the ratio 7 : 3 but were was no change in its parameter. Find the ratio of the areas of the carpets in both the cases? Select
A) 8:7	B) 8:7	C) 8:3	D) 8:1	E) 8:9

Solution: Let the length and breadth of the carpet in the first case be 3x units and 2x units respectively.   Let the dimensions of the carpet in the second case be 7y, 3y units respectively.   From the data,.   2(3x + 2x) = 2(7y + 3y)   => 5x = 10y   => x = 2y   Required ratio of the areas of the carpet in both the cases   = 3x * 2x : 7y : 3y   = 6x2 : 21y2   = 6 * (2y)2 : 21y2   = 6 * 4y2 : 21y2   = 8:7   Answer:8:7
Answer: B