MU-NLPC/Calc-aqua_rat huggingface dataset:
Four kilograms of oranges contained 98% of water. If the next day the concentration of water decreased by 2%, what was the new weight of the oranges, in kilograms?	Answers
A) 4.9	B) 4.8	C) 2.5	D) 2	E) 0.2

Solution: Four kilograms of oranges contained 98% of water. If the next day the concentration of water decreased by 2%, what was the new weight of the oranges, in kilograms?   (A) 4.9   (B) 4.8   (C) 2.5   (D) 2   (E) 0.2   If D is the answer, then the question means that the concentration of water the newt day became 96%.   Out of 4 kilograms 98%, or 3.92 kilograms was water and 0.08 kilograms was non-water.   The next day, after some water evaporated, oranges became 96% water and 4% of non-water, so the next day 0.08 kilograms of non-water composed 4% of oranges, which means that the new weight of the oranges was x*0.04=0.08 --> x=2 kilograms.   Answer:2.
Answer: D
Two girls started running simultaneously around a circular track of length 500 m from the same point at speeds of 30 km/hr and 20 km/hr. When will they meet for the first time any where on the track if they are moving in opposite directions?	Choose the correct answer: A) 35 B) 36 C) 37 D) 38 E) 39

Solution: Time taken to meet for the first time anywhere on the track   = length of the track / relative speed   = 500 / (30 + 20)5/18 = 500* 18 / 50 * 5 = 36 seconds.   Answer:36
Answer: B
A box held 20 blue marbles and 30 red marbles. One marble is drawn at random. What is the probability that the marble is red?
Choose the correct choice from the following:  A) 1/4  B) 2/5  C) 3/5  D) 3/4  E) None of these

Solution: Explanation:   Total cases = 20 + 30= 
20 + 30 = 50
50   Favourable cases= 30   So probability = 30/50 = 3/5   Answer: 3/5
Answer: C
A train passes a station platform in 34 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?	Choices.
A) 248 m  B) 210 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)/34 = 15 ==> x + 300 = 510 ==> x   = 210 m.   Answer: 210 m
Answer: B
The average temperature for Monday, Tuesday and Wednesday was 72Â°F. The average for Tuesday, Wednesday and Thursday was 74Â°F. If temperature on Thursday was 76Â°F, what was the temperature on Monday?	Answers:
A) 78Â°F  B) 70Â°F  C) 71Â°F  D) 68Â°F  E) None of the above

Solution: Solution: Average temperature for Monday, Tuesday and Wednesday = 72Â°F.   Total temperature = 3*72= 
3*72 = 216
216   Average temperature for Tuesday, Wednesday and Thursday= 74Â°F   Total temperature = 3*74= 
3*74 = 222
222   Temperature on Thursday=76Â°F   Now,   (Monday + Tuesday + Wednesday) - (Tuesday + Wednesday + Thursday) = 222-216   Thursday - Monday = 5   Monday = 76-5= 
76-5 = 71
71Â°F   Answer: Option 71Â°F
Answer: C
A man sells an article at 15% loss. Had he sold it for Rs. 140/- more he could have gained 20%. What is the cost price of the article? Choose the correct choice from the following:
A) Rs.420/-
B) Rs.400/-
C) Rs.460/-
D) Rs.480/-
E) None of these

Solution: Explanation:   Short cut method:   Loss =====> 15 %   Profit ====> 20 %   ~   ----------------   35 % ---------> Rs. 140/-   100 % --------> Rs. 400/-   Answer: Option Rs.400/-
Answer: B
In how many different ways can the letters of the word 'SCHOOL' be arranged so that the vowels always come together?	Choose the correct choice from the following answers: A) 90 B) 100 C) 120 D) 130 E) 150

Solution: 'SCHOOL' contains 6 different letters.   vowels OO are always together   we have to arrange the letters (OO)SCHL   Now 5 letters can be arranged in 5! = 120 ways   The vowels (OO) can be arranged 2! = 2 ways.   = (120 x 2) = 240   again you have to divided 2 common vowels so answer is 120   120)
Answer: C
A man walks at a rate of 10 mph. After every ten miles, he rests for 7 minutes. How much time does he take to walk 50 miles?
Select
A) 300 B) 318 C) 322 D) 328 E) 330

Solution: To cover 50 miles the man needs (time) = (distance)/(rate) = 50/10= 
50/10 = 5
5 hours= 300 minutes. He will also rest 4 times (after 10, 20, 30 and 40 miles), so total resting time = 4*7= 
4*7 = 28
28 minutes.   Total time= 300 + 28= 
300 + 28 = 328
328 minutes.   Answer: 328.
Answer: D
A, B and C hire a taxi for Rs. 2400 for one day. A, B and C used the car for 6 hours, 8 hours and 10 hours respectively. How much did C pay?	Choose the correct answer.
A) Rs. 800
B) Rs. 1000
C) Rs. 600
D) Rs. 1200
E) None

Solution: Let total fair be = 2400 ;   Therefore c share =10/24 × 2400 = 1000   Answer: Rs. 1000
Answer: B
4. A and B can do a certain piece of work in 18  Choose the most appropriate option.
A) 23	B) 77	C) 269	D) 26	E) 272

Solution: 23nswer:23
Answer: A
A vendor bought bananas at 6 for Rs.10 and sold them at Rs.4 for Rs.6 .Find his gain or loss percent . Choose the correct choice from the following answers:
A) 10
B) 20
C) 25
D) 30
E) 32

Solution: Sol:   Suppose , number of bananas bought = LCM of 6 and 4=12   CP=Rs.[(10/6)*12]=Rs.20 ; SP= Rs[(6/4)*12]=Rs.18   Loss%=[(2/20)*100= 
(2/20)*100 = 10
10%   Option 10
Answer: A
96 is divided into two parts in such a way that seventh part of first and ninth part of second are equal. Find the smallest part? Choose the correct answer:
A) 22	B) 88	C) 42	D) 66	E) 11

Solution: x/7 = y/9 => x:y = 7:9   7/16 * 96= 
7/16 * 96 = 42
42   Answer: 42
Answer: C
5862 is to 714
and 3498 is to 1113
and 9516 is to 156
therefore 8257 is to ? Pick one:	A) 163	B) 134	C) 157	D) 189	E) 143

Solution: 157   157   7 + 8= 
7 + 8 = 15
15,   2 + 5= 
2 + 5 = 7
7
Answer: C
20. A certain church bell rings the bell twice at half past the hour and four
times at the hour plus an additional number of rings equal to what ever
time it is. How many rings will the clock make from 6:20 in the morning
to 09:50 in the morning?	Select the correct option:
A) 44.
B) 36.
C) 42.
D) 46.
E) 50.

Solution: unless i understood the problem correctly, i get 58   @ 6:30 - 2   @ 7 - 4+7 =11   @ 7:30 - 2   @ 8 - 12   @ 8:30 - 2   @ 9 - 13   @ 9:30 - 2   totals to 44.=44
Answer: A
As a bicycle salesperson, Norman earns a fixed salary of $20 per week plus $6 per bicycle for the first six bicycles he sells, $12 per bicycle for the next six bicycles he sells, and $18 per bicycle for every bicycle sold after the first 12. This week, Norman earned more than twice as much as he did last week. If he sold m bicycles last week and y bicycles this week, which of the following statements must be true?
I. y > 2m
II. y > m
III. y > 3
Choose the correct choice from the following answers:
A) I only	B) II only	C) I and II	D) II and III	E) I, II, and III

Solution: This is kind of like doing your taxes, lets summarize the data in terms of bike sales and salary -   0 Bikes - $20   6 Bikes - $56   12 Bikes - $128   More than 12 bikes - 128 + 18*(m-12) where m is the total number of bikes sold (when m>12).   M = cycles sold last week   MS = Salary last week.   Y = cycles sole this week   YS = Salary this week.   given YS>2MS   lets test all statements with M=0;   MS = 20   YS >40   True when Y = 4   satisfies all the statements but we can only be sure of iii as Y will only increase from here. So iii must be true. Eliminate A,B,C   lets test all statements with M=1;   MS = 26   YS>52   True when Y=6   Still satisfies all the statements - Nothing achieved   lets test all statements with M=6;   MS = 56   YS>112   True when Y = 11   This proves statement i wrong, hence eliminate E so we are left with   Answer II and III
Answer: D
If the average (arithmetic mean) of 10 consecutive odd integers is 154, then the least of these integers is  Choose the correct choice from the following
A) a) 51 B) b) 58 C) c) 145 D) d)190 E) e)210

Solution: A very helpful rule to know in arithmetic is the rule that in evenly spaced sets, average = median. Because the average will equal the median in these sets, then we quickly know that the median of this set of consecutive odd integer numbers is 154.   There are 10 numbers in the set, and in a set with an even number of terms the median is just the average of the two most median terms (here the 5th and 6th numbers in the set). This means that numbers 5 and 6 in this set are 153 and 155. Because we know that number 5 is 153, we know that the smallest number is 4 odd numbers below this, which means that it is 4*2= 
4*2 = 8
8 below this (every odd number is every other number). Therefore   153-8= 
  153-8 = 145
145, answer choice c) 145
Answer: C
Find the no.of ways of arranging the boy and 11 guests at a circular table so that the boy always sits in a particular seat? Choices
A) 3!  B) 8!  C) 7!  D) 9!  E) 11!

Solution: Ans.(E)   Sol. Total number of persons = 12 Host can sit in a particular seat in one way. Now, remaining positions are defined relative to the host. Hence, the remaining can sit in 11 places in 11P11 = 11! Ways ... The number of required arrangements = 11! x 1= 11! = 11! ways
Answer: E
A Jar contains a mixture of AB in the ratio 4:1. When 20 L of Mixture is replaced with liquid B, ratio becomes 2:3. How many liters of liquid A was present in mixture initially.	Choose the correct answer.
A) 12	B) 15	C) 32	D) 20	E) 25

Solution: 20 litres of mixture that is replaced will contain 16 litres of A and 4 litres of B (as A:B = 4:1)   Let the initial volume of the mixture be 4K + 1K = 5K   So by condition ,   [ 4K-16 ]/ [ K-4+20 ]   4  + 1= 
  4  + 1 = 5
5K   So by condition ,   [ 4K-16 ]/ [ K-4+20 ]= 2/3 => 12k -48 = 2k-8+40 => 10k=80   Solve for K which is K = 8   So initial volume of liquid A = 4K = 32 litres   Answer : 32
Answer: C
1+2+2^2+2^3=？	Choose the most appropriate option.
A) (2^3-1)(2^3+1)	B) (2^2-1)(2^2+1)	C) 2^5-1	D) 2^5+1	E) 2^5-2

Solution: From 1+2+2^2+2^3=1(2^4-1)/(2-1)=2^4-1=(2^2-1)(2^2+1), the correct answer is (2^2-1)(2^2+1).
Answer: B
In how many different ways can the letters of the word JUDGE be arranged so that the vowels always come together?	Pick:  A) 48  B) 24  C) 120  D) 60  E) None of these

Solution: Reqd. number = 4! × 2! = 24 × 2 = 48   48nswer 48
Answer: A
A school has 4 section of Chemistry in Class X having 65, 35, 45 and 42 students. The mean marks obtained in Chemistry test are 50, 60, 55 and 45 respectively for the 4 sections. Determine the overall average of marks per student.
Choose the correct option.
A) 50.25	B) 52.25	C) 51.95	D) 53.25	E) None of the above

Solution: Required average marks   = 65Ã—50+35Ã—60+45Ã—55+42Ã—45/65+35+45+42   = 3250+2100+2475+1890/187   = 9715â„187 = 51.95   Answer 51.95
Answer: C
If -11a and -8b are negative integers, then (-11a)*(-8b )+ ab is Choose one:  A) 88ab  B) -89ab  C) 89 ab  D) -88a  E) -88b

Solution: Answer : 89 ab
Answer: C
What is the remainder wen 2^35 is divided by 5? Pick one.
A) 1
B) 2
C) 3
D) 4
E) 5

Solution: 2^35 / 5   => (2^4)^8 * 2^3 / 5   => (5*3+1)^8 * (5+3) / 5   => (1*3)/5   => 3/5   => remainder = 3   ANSWER:3
Answer: C
The cost price of 18 articles is equal to the selling price of 11 articles. Find the profit percent? Choose the correct choice: A) 18 2/15 B) 36 2/11 C) 45 2/14 D) 54 2/16 E) 63 7/11

Solution: 18 CP = 11 SP   11 --- 2 CP   100 --- ? =>63 7/11%.Answer: 63 7/11
Answer: E
A teacher prepares a test. She gives 5 objective type questions out of which 4 have to be answered. Find the total ways in which they can be answered if the first 2 questions have 2 choices and the last 3 have 4 choices.
Options
A) 255  B) 448  C) 192  D) 100  E) 144

Solution: Two cases.   First Case: 2 Questions - 2 Choices, 2 Questions - 4 Choices   2C2 * 3C2 ways to select the questions   2C1 * 2C1 * 4C1 * 4C1 ways to answer the questions   = 1 * 3 * 2 * 2 * 4 * 4= 
1 * 3 * 2 * 2 * 4 * 4 = 192
192   Second Case: 1 Question - 2 Choices, 3 Questions - 4 Choices   2C1 * 3C3 ways to select the questions   2C1 * 4C1 * 4C1 * 4C1 ways to answer the questions= 2 * 1 * 2 * 4 * 4 * 4= 
2 * 1 * 2 * 4 * 4 * 4 = 256
256   Total= 192 +256= 
192 +256 = 448
448   448
Answer: B
Nitin’s salary is reduced by 10% and then reduced salary is increased by 10%. Find ,how many percentage his present salary is less as compared to his previous salary? Choose the correct choice from the following answers.
A) 7%
B) 2%
C) 1%
D) 4%
E) 5%

Solution: 10*10   -------- = 1%   100   Answer: 1%
Answer: C
The market value of a 10.5% stock, in which an income of Rs. 756 is derived by investing Rs. 8000, brokerage being 1/4%, is: Choose the correct choice from the following answers.
A) 110.86
B) 114
C) 114.75
D) 124
E) 124.75

Solution: Face Value = Rs. 8000.   Dividend = 10.5%.   Annual Income = Rs. 756.   Brokerage per Rs. 100 = Rs. 0.25.   Dividend is always paid on the face value of a share.   Face Value * Dividend / (Market Value + Brokerage per Rs. 100) = Annual income.   = 8000 * 10.5 / 756 = Market Value of Rs. 100 stock + Brokerage per Rs. 100.   = Market Value of Rs. 100 stock + Brokerage per Rs. 100 = Rs. 111.11   = Market Value of Rs. 100 stock = Rs. 111.11 - Re. 0.25.   = Market Value of Rs. 100 stock = Rs. 110.86.   answer : 110.86
Answer: A
Of 40 applicants for a job, 24 had at least 4 years' experience, 15 had degrees, and 4 had less than 4 years' experience and did not have a degree. How many of the applicants had at least 4 years' experience and a degree?  Pick one:
A) 14  B) 3  C) 9  D) 7  E) 5

Solution: set A : people with more than 4 years exp   set 3 : people with degree   AU3 = total - (less than 4 exp and no degree)   AU3 = 40-4= 
40-4 = 36
36   AU3= A + 3 - Ai3   Ai3 = 15+24-36= 
15+24-36 = 3
3   Answer 3
Answer: B
How many cubes of 10 cm edge can be put in a cubical box of 1 m edge.	Choose the correct choice from the following choices.
A) 177 cm  B) 100 cm  C) 786 cm  D) 617 cm  E) 187 cm

Solution: Number of cubes =100∗100∗10010∗10∗10=1000   Number of cubes =100∗100∗10010∗10∗10=1000   Note: 1 m = 100 cm   Answer:100 cm
Answer: B
8 men, working 9 hours a day can complete a work in 24 days. How many hours a day must 12 men work to complete the same work in 16 days?	Choose the correct choice from the following options:
A) 6	B) 7	C) 8	D) 9	E) 10

Solution: The number of hours required to complete the work is 8*9*24= 
8*9*24 = 1_728
1728   12 × 16 × (x)= 1728   x = 9   The answer is 9.
Answer: D
If an object travels at five feet per second, how many feet does it travel in one hour? Choose the correct choice from the following answers:
A) 30	B) 3000	C) 18	D) 1800	E) 2200

Solution: If an object travels at 5 feet per second it covers 5x60 feet in one minute, and 5x60x60 feet in one hour.   Answer = 1800 Answer: 1800
Answer: D
Kamal obtained 76, 65, 82, 67 and 85 marks(out of 100) in English, Mathematics, Physics, Chemistry and Biology. What are his average marks?
Choose the correct option:  A) 65  B) 69  C) 72  D) 75  E) NOne

Solution: Sol.   Average   = 76 + 65 + 82 + 67 + 85 / 5)   = (375 / 5)= 
(375 / 5) = 75
75.   Answer 75
Answer: D
If log102 = 0.3010, log10 3 = 0.4771, then the number of zeros between the decimal point and the first
significant figure in (0.0432)10 is?
Choose the correct choice from the following:
A) 10
B) 13
C) 14
D) 15
E) 16

Solution: X = (0.0432)10 = (432/10000)10 = (33.24/104)10   Therefore, log10X = 10 (log103 + 4log102-4)   = 10(1.4313 + 1.2040 - 4)   = 10(-1.3647)   = -13.647   = -14.353   Therefore, X = antilog(-14.053)   Thus, number of zeros between the decimal and the first significant figure = 13   ANSWER:13
Answer: B
If 09/12/2001 happens to be Sunday, then 09/12/1971 would have been at	Choose the correct choice from the following answers:
A) Wednesday	B) Tuesday	C) Saturday	D) Thursday	E) None of these

Solution: Explanation09/12/2001—— Sunday   No. of days between 9/ 12/ 71 & 9 / 12/ 2001   we know every year has 1 odd days   we know leap year has 2 odd days   Here, No. of normal years = 22   And no. of leap years = 8   So odd days = 22 + 16= 
22 + 16 = 38
38 i.e 3 odd days (remainder when 38 is divided by 7, i.e. 3)   Hence it was a Thursday   Answer Thursday
Answer: D
Jane makes toy bears. When she works with an assistant, she makes 80 percent more bears per week and works 10 percent fewer hours each week. Having an assistant increases Jane’s output of toy bears per hour by what percent R?  Choose the correct option:
A) 20%  B) 80%  C) 100%  D) 180%  E) 200%

Solution: C.   Let's assume just Jane 40 bears per 40/hrs a week, so that is 1 bear/hr. With an assistant she makes 72 bears per 36 hours a week or 2 bears/hr ([40 bears * 1.8] / [40 hrs * .90]).   R=[(2 - 1)/1] * 100% = 100%.100%(2 - 1)/1  * 100= 
(2 - 1)/1  * 100 = 100
100%.100%
Answer: C
Two pipes A and B can fill a tank in 6 hours and 4 hours respectively. If they are opened on alternate hours and if pipe A is opened first, in how many hours, the tank shall be full ?  Options:	A) 4 hrs	B) 5 hrs	C) 7 hrs	D) 9 hrs	E) 8 hrs

Solution: A's work in 1 hour	= 1/6.   B's work in 1 hour	= 1/4.   (A+B)'s 2 hour's work when opened alternately	= (1/6 + 1/4)   = 5/12.   (A+B)'s 4 hour's work when opened alternately	= 10/12   = 5/6.   Remaining part	= (1 - 5/6)   = 1/6.   Therefore, total tank to fill the tank	  (4+1)= 
  (4+1) = 5
5 hrs.   ANSWER:5 hrs
Answer: B
There are 20 persons sitting in a circle. In that there are 18 men and 2 sisters. How many arrangements are possible in which the two sisters are always separated by a man?
Pick:
A) 18!x2  B) 17!  C) 17x2!  D) 12  E) 14

Solution: Now the first sister can sit in 20 ways and other sister can sit either left or right such that 2 ways .18!x2ll men can sit in remaning 18 seats i.e 18!   18!x2nswer is 18!x2   18!x2NSWER:18!x2
Answer: A
At Pete’s Pet Shop, 35 cups of bird seed are used every 5 days to feed 14 parakeets. How many cups of bird seed would be required to feed 9 parakeets for 7 days?  Choose one.
A) 27  B) 9  C) 31.5  D) 16  E) 54

Solution: Let's go step-by-step.   35 cups are used over a 5 day period, which means 7 cups a day. This feeds 14 parakeets, which means each parakeet needs 1/2 of a cup every day.   For 9 parakeets, we need 9*1/2= 
9*1/2 = 9/2 = around 4.5
4.5 cups a day. Over 7 days, we need 31.5 cups. 31.5hoice c.
Answer: C
If the number 779 * 876 is completely divisible by 9, then the smallest whole number in place of * will b  Choose the most appropriate option:
A) 4 B) 5 C) 7 D) 1 E) 9

Solution: Sum of digits = (7 + 7 + 9 + x + 8 + 7 + 6) = (44 + x), which must be divisible by 9.   x = 1   1)
Answer: D
Machine A can do a certain job in 8 hours. Machine B can do the same job in 10 hours. Machine C can do the same job in 12 hours. All three machines start the job at 9:00 a.m. Machine A breaks down at 11:00 a.m., and the other two machines finish the job. Approximately what time Q will the job be finished? Choose the correct choice from the following answers
A) Noon
B) 12:30 p.m.
C) 1:00 p.m.
D) 1:30 p.m.
E) 2:00 p.m.

Solution: Ans: C (1:00pm)   From 9:00-11:00c(2 hrs)   A can do 1/8 Job/hr. so in 2 hours he can do 1/4 job.   B can do 1/10 job/hr so in 2 hrs. he can do 1/5 Job.   C can do 1/12 job/hr so in 2 hours he can do 1/6 job.   Total = 1/4+1/5+1/6 = 37/60 Job   Now balance work needs to be done by B and C.   Balance Work= 23/60 Job   Combined rate of B and C = 1/10+1/12 = 11/60 job/hr.   So they will do 22/60 work in 2 hrs (approx. to the balance work of 23/60)   Hence the Job will be completed 2hrs. after 11:00 i.e. @ 1:00pm=Q   Ans: 1:00 p.m. (1:00pm)
Answer: C
Three friends-whose walking rates are 1 ft./sec., 3ft./sec.,and 6ft./sec. start together walking in the same direction around a circular track that is 120 feet in circumference.After how many minutes are the three of them together again? Choose the correct option:
A) 2 mins
B) 10 mins
C) 15 mins
D) 3 mins
E) 7 mins

Solution: Answer will be A.   The time they take will be what the 1st friend takes to complete one circumference as he is the slowest and that is the point all 3 of them will be together at the end of 2 mins.
Answer: A
Stacy and Heather are 30 miles apart and walk towards each other along the same route. Stacy walks at constant rate that is 1 mile per hour fast than heather's constant rate of 5 miles/hour. If Heather starts her journey 24 minutes after Stacy, how far from the original destination has Heather walked when the two meet?.  Choose the correct choice from the following answers.
A) 15 mile	B) 14 mile	C) 11 mile	D) 10 mile	E) 12.5 mile

Solution: Ss - Stacy's speed = 6m/hr   Sh - Heather's speed = 5m/hr   In 24 minutes Stacy will cover = (24/60)*6= 
(24/60)*6 = 12/5 = around 2.4
2.4miles   Now since both are walking in opposite directions, add their speeds - 6+5=11m/hr and distance to cover is 30 -2.4 = 17.6   Time taken = Distance/ Speed = 27.6/11 = 2.5 hrs   Heather will cover = 5*2.5= 
5*2.5 = 12.5
12.5miles.   Answer 12.5 mile
Answer: E
If (A+B) = 5, (B+C) = 6 and (C+D) = 3, what is the value of (A+D)? Choose the correct answer
A) 16.  B) 8.  C) 7.  D) 2.  E) -2.

Solution: Given A+B = 5   B+C = 6   C+D = 3   (A+B)-(B+C)+(C+D)=(A+D)   => 5 - 6+3= 
5 - 6+3 = 2
2.   Option 2....
Answer: D
If a motorist had driven 1 hour longer on a certain day and at an average rate of 4 miles per hour faster, he would have covered 70 more miles than he actually did. How many more miles would he have covered than he actually did if he had driven 2 hours longer and at an average rate of 10 miles per hour faster on that day?
Choices.
A) 100  B) 120  C) 140  D) 150  E) 160

Solution: 140ase 1:   let rate = R, Time = T, and Distance =D   so D=RT   140ase 2:   (D+70)=(R+4)(T+1)   140ase 3:   (D+X)=(R+10)(T+2)   X=140   Ans 140
Answer: C
Last Sunday a certain store sold copies of Newspaper A for $1.00 each and copies of Newspaper B for $1.25 each, and the store sold no other newspapers that day. If r percent of the store's revenues from newspapers sales was from Newspaper A and if w percent of the newspapers that the store sold were copies of Newspaper A, which of the following expresses r in terms of w? Choose one.
A) 100p / (125 - p)	B) 150p / (250 - p)	C) 300p / (375 - p)	D) 400w / (500 - w)	E) 500p / (625 - p)

Solution: I have just started with qunats section .. I solved this by making two equations and got the answer ... However it was long way of doing it ...   I got the answer as : 100w /(125 - .25 w)...   Multiply this equation by 4 and you get 400w / (500 - w) as the answer ,...
Answer: D
What will come in place of the x in the following Number series? 25, 100, x, 1600, 6400  Choose one.
A) 6400	B) 5600	C) 5790	D) 8554	E) 8756

Solution: (6400)   25 x 4 = 100, 100 x 4 = 400, 400 x 4 = 1600, 1600 x 4 = 6400.
Answer: A
At what price must an article costing Rs.47.50 be marked in order that after deducting 5% from the list price. It may be sold at a profit of 25% on the cost price?
Choose the most appropriate option
A) 62.5
B) 62.1
C) 62.9
D) 62.2
E) 42.5

Solution: CP = 47.50   SP = 47.50*(125/100)= 
47.50*(125/100) = 59.375
59.375   MP*(95/100)= 59.375   MP = 62.5   62.5nswer: 62.5
Answer: A
A grocer has a sale of Rs. 6435, Rs. 6927, Rs. 6855, Rs. 7230 and Rs. 6562 for 5 consecutive months. How much sale must he have in the sixth month so that he gets an average sale of Rs. 6500? Answers:
A) Rs. 4991
B) Rs. 5001
C) Rs. 5991
D) Rs. 6001
E) Rs. 6901

Solution: Total sale for 5 months = Rs. (6435 + 6927 + 6855 + 7230 + 6562) = Rs. 34009.   Required sale = Rs. [ (6500 x 6) - 34009 ]   = Rs. (39000 - 34009)   = Rs. 4991.   answer :Rs. 4991
Answer: A
Find the sum of divisors of 544 which are perfect squares
Choose the correct answer:
A) 21  B) 22  C) 23  D) 24  E) 25

Solution: perfect squares divisiors are 1, 2^2 & 2^4 only   sum of divisors of 544 which are perfect squares = 1 + 2^2 + 2^4 = 21   21NSWER:21
Answer: A
Sushil got twice as many marks in English as in Science. His total marks in English, Science and Maths are 170. If the ratio of his marks in English and Maths is 5:3, find his marks in Science?	Choose the correct choice from the following answers.
A) 50 B) 77 C) 66 D) 55 E) 31

Solution: S:E = 1:2   E:M = 5:3   ------------   S:E:M = 5:10:6   5/17 * 170= 
5/17 * 170 = 50
50   50nswer: 50
Answer: A
If f(y)=y^2 and y is a positive integer, which of the following CAN be the value of f(f(y))?
Choose the correct choice from the following options
A) 10	B) 15	C) 144	D) 81	E) 254

Solution: f(y)=y^2   f(f(y)) = (y^2)^2   f(f(3) = (3^2)^2 = 81   Answer 81
Answer: D