MU-NLPC/Calc-aqua_rat huggingface dataset:
A manufacturer of a certain product can expect that between 0.3 percent and 0.5 percent of the units manufactured will be defective. If the retail price is $2,500 per unit and the manufacturer offers a full refund for defective units, how much money can the manufacturer expect to need to cover the refunds on 10,000 units?
Choose the correct choice from the following choices:
A) Between $15,000 and $25,000
B) Between $30,000 and $50,000
C) Between $75,000 and $125,000
D) Between $150,000 and $250,000
E) Between $300,000 and $500,000

Solution: Number of defective units is between = .3 % of 10000 and .5% of 10000   = 30 and 50   Retail Price per unit = 2500 $   Expected price of refund is between = 2500 x 30 and 2500 x 50   =75,000 and 125,000 dollars   Answer Between $75,000 and $125,000
Answer: C
On the x-y coordinate plane there is a parabola, y=x(4-x). Which of the following points is in the region that is enclosed by this parabola and the x-axis?
I. (1, 2) II. (2, 5) III. (3, 2)
Answers:
A) I only	B) II only	C) III only	D) I and III	E) I, II, and III

Solution: Since co-efficient of x^2 is negative, the parabola will be downward facing. So the parabola and the x axis will enclose some points where the y-values of the parabola are positive.   When x = 1, y = 3 lies on the parabola, so (1, 2) will be enclosed by the parabola and x axis.   When x = 2, y = 4 lies on the parabola, so (2, 5) will not be enclosed by the parabola and x axis.   When x = 3, y = 3 lies on the parabola, so (3, 2) will be enclosed by the parabola and x axis.   The answer is I and III.
Answer: D
If n is the product of integers from 1 to 20 inclusive what is the greatest integer k for which 2^k is a factor of n?
.
Select:
A) 10
B) 12
C) 15
D) 18
E) 20

Solution: 20! = 1*2*3*4*5...*19*20 (This is 20 factorial written as 20!)   n = 1*2*3*4*5*6*7.....*19*20   How many 2s are there in n?   One 2 from 2   Two 2s from 4   One two from 6   Three 2s from 8   and so on...   When you count them all, you get 18.   ANSWER:18
Answer: D
The sum of the ages of 4 children is 52 years. The age of the youngest child is 4. If the intervals of years each born is same find the interval?
Choose the correct option:
A) 4
B) 8
C) 10
D) 6
E) Cannot be determined

Solution: Explanation:   Let the interval is x .The youngest child's age is 4. Each of the other 3 children will then be 4+x, 4+2x, 4+3x   We know that the sum of their ages is 52 .   so, 4+(4+x)+(4+2x)+(4+3x) = 52   x= 6   Answer: 6
Answer: D
In a 500 m race, the ratio of the speeds of two contestants A and B is 3 : 4. A has a start of 140 m. Then, A wins by: Choices.
A) 20 m	B) 10 m	C) 40 m	D) 30 m	E) 40 m

Solution: To reach the winning point , A will have to cover a distance of 500 - 140= 
500 - 140 = 360
360 metre   ratio of the speeds of two contestants A and B is 3 : 4   i.e., when A covers 3 metre, B covers 4 metre.   When A covers 360 metre, B covers 4/3×360= 480 metre.   Remaining distance B have to cover = 500-480= 
500-480 = 20
20 metre   20 m wins by 20 metre   20 mnswer is20 m
Answer: A
In what time will a train 100 meters long cross an electric pole, if its speed is 72 km/hr	Select:
A) 5 seconds
B) 2.8 seconds
C) 3.5 seconds
D) 2.5 seconds
E) 2.6 seconds

Solution: First convert speed into m/sec   Speed = 72*(5/18)= 
72*(5/18) = 20
20 m/sec   Time= Distance/speed   = 100/20= 
100/20 = 5
5 seconds   5 secondsnswer: 5 seconds
Answer: A
Tom opened a shop investing Rs.30000. Jose joined him 2 months later, investing Rs.45000. They earned a profit of Rs.54000 after completion of one year. What will be Jose's share of profit?
Choose the correct choice from the following choices
A) 20000  B) 22000  C) 23090  D) 24000  E) 30000

Solution: SoL = ~s- So Anju’s share = [5/9] x 54000 = 30000   30000
Answer: E
Find the value of y 9^y = 3^12, what is y? Select the correct option.
A) 2 B) 4 C) 5 D) 7 E) 6

Solution: 3^2y = 3^12   2y=12, therefore y=6   6
Answer: E
The weight of an iron bucket increases by 33.33% when filled with water to 50% of its capacity. Which of these may be 50% of the weight of the bucket when it is filled with water( assume the weight of bucket and its capacity in kg to be integers? Choices: A) 7 kg B) 6 kg C) 5 kg D) 8 kg E) 18 kg

Solution: Say Iron = 6 kg EMPTY so filled with 50% water you have a  1/3*6= 
 1/3*6 = 2
2 kg water weight. so adding the rest of the bucket with water will naturally increase it by another 2kg so you have 2+2+6= 
2+2+6 = 10
10 thus 50% of 10= 5.   ANSWER:5 kg
Answer: C
The average (arithmetic mean) of 16 students first quiz scores in a difficult English class is 61.5. When one student dropped the class, the average of the remaining scores increased to 64.0. What is the quiz score of the student who dropped the class?	Choose the correct option:
A) a) 10  B) b) 24  C) c) 40  D) d) 55  E) e) 70

Solution: Total Score of 16 students is  16*61.50= 
 16*61.50 = 984
984   Total Score of 15 students is  15*64= 
 15*64 = 960
960   So, the score of the person who left is 24 ( 984 - 960 )   Answer will be (b) 24)
Answer: B
18! is equal to which of the following?	Pick one.
A) 6,402,373,705,728,125 B) 6,402,373,705,728,216 C) 6,402,373,705,728,624 D) 6,402,373,705,728,000 E) 6,402,373,705,728,989

Solution: After 4!, the units digit of every factorial is 0.   5!=120   6!=720   etc...   The answer is 6,402,373,705,728,000.
Answer: D
A straight pipe 1 meter in length was marked off in halves and also in thirds. If the pipe was then cut into separate pieces at each of these markings, which of the following gives all the different lengths of the pieces, in fractions of a meter?
Choose the correct option
A) 1/6 and 1/3 only	B) 1/4 and 1/3 only	C) 1/6, 1/4, and 1/3	D) 1/12, 1/6 and 1/4	E) 1/12, 1/6, and 1/3

Solution: Generally fast way to solve such problem is writing the different marks in ascending/descending order with same denominator:   Here 4th : 0/4, 1/4, 2/4, 3/4, 4/4   and 3rd : 0/3, 1/3, 2/3, 3/3   Generally fast way to solve such problem is writing the different marks in ascending/descending order with same denominator:   Here 2th : 0/2, 1/2, 2/2   and 3rd : 0/3, 1/3, 2/3, 3/3   Now with understood common denominator 6 write the numbers : for 2th : 0,3,6 and for 3rd : 0,2,4,6   Now comine : 0,2,3,4,6   Now find the cut with denominator 6 (Substracrt adjacent terms : 1/3, 1/6, 1/6, 1/3 i.e. 1/3 and 1/6 after removing duplicates.   answer : 1/6 and 1/3 only
Answer: A
A shopkeeper sold an article for 500 after giving 10% discount on the labelled price and made 20% profit on the cost price. What would have been the percentage profit,had he not given the discount’?
Answers: A) 33.33% B) 30% C) 23% D) 28% E) None of these

Solution: Cost price =500×100/120= 416.67   S.P. at no discount = 500×100/90 = 555.55   ∴ % profit = 138.88×100/416.67 = 33.33 %   33.33%nswer 33.33%
Answer: A
Which of the following fractions is greater than 1/3 and less than 1/5?
1.1/3 2. 1/5 3. 1/2 4. 2/3 5. 4/5 6. 9/10	Choices.
A) 1/5
B) 1/3
C) 1/4
D) 1/9
E) 1/8

Solution: 1/5= 
1/5 = 1/5 = around 0.2
0.2, 1/3= 0.33, 1/9= 0.11, 1/8= 0.125, 4/5= 0.8, 1/4= 0.25.   Clearly, 0.25 lies between 0.20 and 0.33.   Therefore, 1/4 Lies between 1/5 and 1/3.   Answer is 1/4.
Answer: C
When positive integer x is divided by positive integer y, the remainder is 9. If x/y = 96.25, what is the value of y?
Select the correct option
A) 96  B) 75  C) 36  D) 25  E) 12

Solution: Guys, one more simple funda.   5/2= 
5/2 = 5/2 = around 2.5
2.5   now .5 x2=1 is the remainder     25/4= 
  25/4 = 25/4 = around 6.25
6.25   now .25x4=1 is the remainder     32/5= 
  32/5 = 32/5 = around 6.4
6.4   now.4x5= 2 is the remainder   given x/y = 96.25 and remainder is 9   So .25 X y = 9   hence y= 36   Ans 36
Answer: C
Which is the middle even number between 5 and 15?
Choices
A) 5 B) 10 C) 25 D) 30 E) 42

Solution: 5+x = 15-x   2 x = 10   X = 5   Now 5+x = 10   ANSWER:10
Answer: B
Meera purchased two three items from a shop. Total price for three items is Rs.5200/- She have given Rs. 7000/- What is the balance amount meera got?
Choose the correct choice from the following
A) 650 B) 400 C) 1350 D) 1800 E) 1750

Solution: Total cost of Items : 5200/-   amount Paid : 7000/-   Balance receivable : 6000 - 7000= 1800/-   Answer is 1800
Answer: D
The speed of a car is 90 km in the first hour and 60 km in the second hour. What is the average speed of the car?
Choose the correct choice from the following answers: A) 25 B) 75 C) 27 D) 25 E) 29

Solution: S = (90 + 60)/2= 
(90 + 60)/2 = 75
75 kmph   Answer: 75
Answer: B
What is the product of all the prime factors of 14?	Answers: A) 13 B) 12 C) 14 D) 11 E) 10

Solution: factors : 2,7   2*7= 
2*7 = 14
14   Answer : 14
Answer: C
The G.C.D of 1.2, 0.36 and 0.9 is
Choose the correct option:
A) 0.19
B) 0.1
C) 0.06
D) 0.11
E) 0.12

Solution: Explanation:   Given numbers are 1.2 , 0.36 and 0.90   H.0.06.F of 120, 36 and 90 is 6 [ because G.0.06.D is nothing but H.0.06.F]   therefore H.0.06.F of given numbers = 0.06   Answer: 0.06)
Answer: C
You collect pens. Suppose you start out with 25. Mike gives you another 22 pens. Since her father makes pens, Cindy decides to double your pens. Since you're nice, you give Sharon 19 pens. How many pens do you have at the end?
Select:
A) 39  B) 40  C) 41  D) 75  E) 43

Solution: Solution   Start with 25 pens.   Mike gives you 22 pens:  25 + 22= 
 25 + 22 = 47
47 pens.   Cindy doubles the number of pens you have: 47 Ã— 2= 94 pens.   Sharon takes 19 pens from you:  94 - 19= 
 94 - 19 = 75
75 pens.   So you have 75 at the end.   Correct answer: 75
Answer: D
On a map, 1.5 inches represent 24 miles. How many miles approximately is the distance if you measured 47 centimeters assuming that 1-inch is 2.54 centimeters?	Choose the correct choice from the following choices: A) 174.2 B) 212 C) 288.1 D) 296 E) 282.4

Solution: 1.5 inch = 2.54*1.5 cm.   So, 2.54*1.5 represents 24 miles.   So for 47 cm.:   47/(2.54*1.5) = x / 24 ---> x = 24*47/(4.81) = 296   Answer will be 296.
Answer: D
The rear–most end of a 66 foot truck exits a 330 foot tunnel exactly 6 seconds after the front–most end of the truck entered the tunnel. If the truck traveled the entire tunnel at a uniform speed, what is the speed of the truck in miles per hour (1 mile = 5,280 feet)?  Select.
A) 225  B) 90  C) 45  D) 37.5  E) 27

Solution: total length will be 330+66= 
330+66 = 396
396   time=6 secs   speed=396/6= 
396/6 = 66
66 feet/sec   conversion to miles per hour=66*3600/5280= 
66*3600/5280 = 45
45.   Answer 45
Answer: C
What will be the reminder when (1234567890123456789)^24 is divided by 6561 ?	Choose the correct option:
A) 0
B) 1
C) 2
D) 3
E) 4

Solution: The digital sum of number is   (1+2+3+4+5+6+7+8+9+0+1+2+3+4+5+6+7+8+9)= 
(1+2+3+4+5+6+7+8+9+0+1+2+3+4+5+6+7+8+9) = 90
90=(9+0)= 
(9+0) = 9
9   So it is divisible by 3 or 9   The given divisor 6561= 9^4   So   9^24/9^4 Reminder is 0   0NSWER:0
Answer: A
A bag contains 4 white marbles and 4 black marbles. If each of 4 girls and 4 boys randomly selects and keeps a marble, what is the probability that all of the girls select the same colored marble?
Choose the correct choice:
A) 1/35 B) 1/9 C) 1/10 D) 1/20 E) 1/30

Solution: first, total ways to select for all boys and girls, i.e 8!/(4!*4!) = 8*7*6*5*4*3*2*1/4*3*2*1*4*3*2*1=70   then there are one two way girls can have all same colors, either white or black.   The number of ways in which 4 girls can select 4 white balls = 4C4 = 1   The number of ways in which 4 girls can select 4 black balls = 4C4 = 1   Therefore, total favorable outcomes/total outcomes = 2/70= 1/35   1/35
Answer: A
A 2000 liter tank, half-full of water is being filled from a pipe with a flow rate of 1 kiloliter every 2 minutes. At the same time, the tank is losing water from two drains at a rate of 1 kiloliter every 4 minutes and every 6 minutes. How many minutes does it take to fill the tank completely?	Options:  A) 8  B) 12  C) 18  D) 24  E) 48

Solution: In: we have: 1,000/2min = 500 litres per minute   Out: we have: 1,000/4 + 1,000/6   Then do: IN - OUT to figure out the net inflow per minute (you get 83.3). Then divide the total number of litres you need (1,000 by that net inflow to get the minutes) - 12 min. Answer 12.
Answer: B
Joe can clean the house in 4 hours. Cindy can clean the house in 3 hours. How many hours will it take for both of them working together to clean the house?	Choose the correct choice from the following answers:
A) 1 B) 2 5/7 C) 2 1/5 D) 1 5/7 E) 3 1/2

Solution: Work hrs=AB/(A+B)= 12/7 =1 5/7   Answer is 1 5/7
Answer: D
The speed of a car is 145 km in the first hour and 60 km in the second hour. What is the average speed of the car?
Answers
A) 89 kmph	B) 92 kmph	C) 75 kmph	D) 102.5 kmph	E) 77 kmph

Solution: S = (145 + 60)/2= 
(145 + 60)/2 = 205/2 = around 102.5
102.5 kmph   102.5 kmph
Answer: D
In how many ways Chief Minister and Minister be elected from a team of 12 members?
Choose the correct choice from the following:
A) 128	B) 130	C) 132	D) 143	E) 145

Solution: To do this, if captain is elected first, then we have 12 ways of doing this.   For election of vice-captain, we have only 11 ways left, coz 1 way is already consumed. (Situations like this is called dependent situation. One selection depends upon other selection.)   So, the ans is 12*11= 
12*11 = 132
132 ways.   132
Answer: C
Two trains are moving in the same direction at 144 kmph and 72 kmph. The faster train crosses a man in the slower train in 19 seconds. Find the length of the faster train?  Select the correct option.
A) 320
B) 340
C) 360
D) 380
E) 400

Solution: Relative speed = (144 - 72) * 5/18 = 4 * 5= 
4 * 5 = 20
20 mps.   Distance covered in 19 sec= 19 * 20= 
19 * 20 = 380
380 m.   The length of the faster train= 380 m.   Answer:380
Answer: D
Village A	Village B	Village C	Village D	Village E	Village F ;
Village A
Village B
Village C
Village D
Village E
Village F
In the table above, what is the least number of table entries that are needed to show the mileage between each Village and each of the other five Villages? Pick one:
A) 16  B) 15  C) 18  D) 20  E) 22

Solution: Easy way to go about this problem is we have 6*6= 
6*6 = 36
36 enteries in table the least number of enteries would be (36 - 6) /2 since 6 enteries represent the distances between same points .   Alternatively this can be solved as combination problem.   Correct Answer 15
Answer: B
Myra drove at an average speed of 30 miles per hour for T hours and then at an average speed of 60 miles/hr for the next T hours. If she made no stops during the trip and reached her destination in 2T hours, what was her average speed in miles per hour for the entire trip?
Pick.
A) The average speed is 40 miles per hour.
B) The average speed is 45 miles per hour.
C) The average speed is 48 miles per hour.
D) The average speed is 50 miles per hour.
E) The average speed is 55 miles per hour.

Solution: Here, time for which Myra traveled at the two speeds is same.   Average Speed = (a + b)/2 = (30 + 60)/2= 
(30 + 60)/2 = 45
45 miles per hour   Answer (The average speed is 45 miles per hour.)
Answer: B
If a,b and c are consecutive positive integers and a>b>c. What can be the value of (a^2-b^2)(b^2-c^2)?  Pick.
A) 21  B) 79  C) 143  D) 231  E) 450

Solution: Since a,b and c are consecutive positive integers and a>b>c, we can write them as (x + 1), x and (x - 1) respectively   (a^2-b^2)(b^2-c^2) can be simplified into (2x + 1)(2x - 1) = 4x^2 - 1   using the options to find the product,   only C. 143 satisfactorily gives us x as an integer   ANSWER:143
Answer: C
The number N is 5,1H4, where H represents the ten's digit. If N is divisible by 9, what is the value of H?	Choose the correct option:
A) 1  B) 3  C) 8  D) 7  E) 9

Solution: Integer is divisible by 9 - Sum of digits is divisible by 9   Answer: 8
Answer: C
A wheel that has 6 cogs is meshed with a larger wheel of 14 cogs. When the smaller wheel has made 21 revolutions, then the number of revolutions mad by the larger wheel is: Select:  A) 4  B) 9  C) 12  D) 21  E) 35

Solution: More cogs less revolution,..   so   6:14::x:21   (21*6)/14= 
(21*6)/14 = 9
9   ANSWER:9
Answer: B
A certain bus driver is paid a regular rate of $20 per hour for any number of hours that does not exceed 40 hours per week. For any overtime hours worked in excess of 40 hours per week, the bus driver is paid a rate that is 75% higher than his regular rate. If last week the bus driver earned $1000 in total compensation, how many total hours did he work that week?
Options.
A) 46 B) 40 C) 44 D) 48 E) 49

Solution: For 40 hrs = 40*20= 
40*20 = 800
800   Excess= 1000-800= 
1000-800 = 200
200   For extra hours=.75(20)=15+20= 
15+20 = 35
35   Number of extra hrs=200/35=5.71=6 approx.   Total hrs =40+6= 
40+6 = 46
46   46nswer 46 46
Answer: A
If a and b are odd integers, which of the following is an even integer? Options:	A) 2ab+a	B) 2ab-b	C) 2ab+a+b	D) 2ab+2a+b	E) 2ab+2a+3b

Solution: 2ab+a+b=even+odd+odd=even   The answer is 2ab+a+b.
Answer: C
How many digits are required to number a book containing 260 pages?
Choose the correct choice from the following:
A) 784 B) 672 C) 492 D) 372 E) 300

Solution: 9 pages from 1 to 9 will require 9 digits.   90 pages from 10 to 99 will require   90*2= 
  90*2 = 180
180 digits.   260-(90+9)= 
260-(90+9) = 161
161 pages will require   161*3= 
  161*3 = 483
483 digits.   The total number of digits is 9+180+483= 
9+180+483 = 672
672.   The answer is 672.
Answer: B
In a certificate by mistake a candidate gave his height as 25% more than actual height. In the interview panel, he clarified that his height was 5feet 5 nches. Find the % correction made by the candidate from his stated height to his actual height?	Choose one:
A) 10  B) 20  C) 30  D) 43  E) 50

Solution: His height was = 5 feet 5 inch = 5 + 60= 
5 + 60 = 65
65 inch. Required % correction=65*(1.25-1)* 100 = 20   20
Answer: B
A train speeds past a pole in 15 seconds and a platform 100 m long in 40 seconds. Its length is?	Choose the most appropriate option:
A) 188 m
B) 876 m
C) 251 m
D) 100 m
E) 145 m

Solution: Let the length of the train be x meters and its speed be y m/sec.   They, x / y = 15 => y = x/15   x + 100 / 40 = x / 15   x = 100 m.   Answer: 100 m
Answer: D
A bag contains 12white and 18black balls. 2balls are drawn in succession. What is the probability that first is white and second is black?  Options.
A) 31/145  B) 36/145  C) 32/145  D) 36/147  E) None

Solution: The probability that first ball is white:   =12C130C1=12C130C1   =1230=1230   =25=25   Since, the ball is not replaced; hence the number of balls left in bag is 29.   Hence, the probability the second ball is black:   =18C129C1=18C129C1   =1829=1829   Required probability,   =(25)×(1829)=(25)×(1829)   =36/145   36/145
Answer: B
John and Mary were each paid x dollars in advance to do a certain job together. John worked on the job for 9 hours and Mary worked 2 hours less than John. If Mary gave John y dollars of her payment so that they would have received the same hourly wage, what was the dollar amount, in terms of y, that John was paid in advance?
Choose the correct choice from the following choices
A) 4y B) 5y C) 6y D) 17y E) 9y

Solution: Let $x be the advance that both receive = 2x   Amount earned per hour by John and Mary = x/9 and x/8   Mary gives $y to John to make the wages earned equal   Hence John wage per hr = (x+y)10 which is now equal to Mary's wage (x-y)/8   Solve (x+y)9 = (x-y)/8   8x + 8y = 9x -9y   x = 17y   Ans. 17y
Answer: D
A man swims downstream 72 km and upstream 45 km taking 9 hours each time; what is the speed of the current ?	Choose the correct option:
A) 1 kmph B) 3.2 kmph C) 1.5 kmph D) 2 kmph E) 2.5 kmph

Solution: Explanation:   72 --- 9   ? ---- 1   => Down Stream = 8   45 ---- 9   ? ---- 1   => Up Stream = 5   Speed od current S = ?   S = (8 - 5)/2= 
(8 - 5)/2 = 3/2 = around 1.5
1.5 kmph.   ANSWER IS 1.5 kmph
Answer: C
Sachin is younger than Rahul by 7 years. If the ratio of their ages is 6:9, find the age of Sachin	Choose the correct answer
A) 24.5
B) 14
C) 24.21
D) 27
E) 25

Solution: Explanation:   If Rahul age is x, then Sachin age is x - 7,   so,   9x - 63 = 6x   3x = 63   x = 21   So Sachin age is   21 - 7= 
  21 - 7 = 14
14   Answer: 14) 14
Answer: B
The proportion of water to alcohol in Solution A is 5:4 and the proportion of water to alcohol in Solution B is 6:5. If an equal amount of each solution is mixed together, what is the concentration of alcohol in the new solution? Choose the correct choice from the following options
A) 40.9%
B) 41.9%
C) 42.9%
D) 43.9%
E) 44.9%

Solution: Let V be the total volume of the new solution.   Then a volume of V/2 was added from each solution A and B.   The amount of alcohol added to the new solution was:   (4/9)(V/2)+(5/11)(V/2)=2V/9+5V/22=89V/198.   The concentration of alcohol is 89/198=44.9%   The answer is 44.9%.
Answer: E
A man takes 5 hours 45 min in walking to a certain place and riding back. He would have gained 2 hours by riding both ways. The time he would take to walk both ways is
Choose the correct choice: A) 7hours 75 mins B) 7 hours C) 8 hours D) 5 hours E) 6 hours

Solution: Given that time taken for riding both ways will be 2 hours lesser than   the time needed for waking one way and riding back   From this, we can understand that   time needed for riding one way = time needed for waking one way - 2 hours   Given that time taken in walking one way and riding back = 5 hours 45 min   Hence The time he would take to walk both ways = 5 hours 45 min + 2 hours = 7 hours 45 min   7hours 75 minsnswer is 7hours 75 mins.
Answer: A
Two goods trains each 850 m long are running in opposite directions on parallel tracks. Their speeds are 45 km/hr and 30 km/hr respectively. Find the time taken by the slower train to pass the driver of the faster one?	Select the correct option.
A) 22 sec
B) 81.6 sec
C) 48 sec
D) 18.3 sec
E) 9.32 sec

Solution: Relative speed = 45 + 30= 
45 + 30 = 75
75 km/hr.   75 * 5/18= 125/6 m/sec.   Distance covered = 850 + 850= 
850 + 850 = 1_700
1700 m.   Required time= 1700 * 6/125= 
1700 * 6/125 = 408/5 = around 81.6
81.6 sec.   Answer:81.6 sec
Answer: B
Sujit incurred a loss of 45% on selling an article for Rs.3850/-. What was the cost price of the article?
Choose the most appropriate option.
A) Rs.5725/-	B) Rs.5080/-	C) Rs.6250/-	D) Rs.7000/-	E) None of these

Solution: Explanation:   45% loss means SP of Rs.3850/- is 55% of CP   :. CP = 3850x100/55 = Rs.7000/-   Answer: Option Rs.7000/-
Answer: D
The sum of the ages of 4 children born at the intervals of 3 years each is 36 years. what is the age of the youngest child ?	Choose the correct answer: A) 22 B) 18 C) 4.5 D) 99 E) 38

Solution: Let x = the youngest child. Each of the other four children will then be x+3, x+6, x+9   We know that the sum of their ages is 36   so, x+(x+3)+(x+6)+(x+9)= 36   therefore The youngest child is 4.5 years old   Answer: 4.5
Answer: C
At the end of three years what will be the compound interest at the rate of 10% p.a. on an amount of Rs.5000? Select:
A) 1655  B) 2888  C) 2776  D) 2997  E) 2718

Solution: 1655 = 5000(11/10)^3   = 6655   = 5000   ----------   1655   1655nswer: 1655
Answer: A
Can you find the missing number in the sequence given below?
10 18 26 11 19 ? 12 20 28 13 21 29 Choices
A) 25 B) 23 C) 20 D) 27 E) 19

Solution: Let's break the given series as below:   10 18 26   11 19 ?   12 20 28   13 21 29   Now read the number from left hand side from top to bottom as :   So the number that will replace '?' is 27   Answer : 27
Answer: D
2,5,12,31,81,__  Pick.
A) 210 B) 211 C) 213 D) 214 E) 215

Solution: 12= 5*2+2   31= 12*2+5+2   81= 31*2+12+5+2   Similarly 81*2+31+12+5+2 = 162+50= 
162+50 = 212
212   ANSWER:213
Answer: C