MU-NLPC/Calc-aqua_rat huggingface dataset:
In an election between two candidates, 10% of votes are were declares invalid. First candidate got 1800 votes which were 60% of the total valid votes . The total number of votes enrolled in that election was:
Choose the correct answer
A) 9000 B) 98000 C) 10000 D) 11000 E) 12000

Solution: 100 % - 10 % = 90 %   54%-36%=18%   18% ------> 1800 ( 18 × 100   54 -36= 
  54 -36 = 18
18%   18% ------> 1800 ( 18 × 100= 1800)   100% -------> 10000 votes (100 × 100 = 10000)   10000
Answer: C
If A:B = 1/2: 1/3 B:C = 1/2:1/3 then A:B:C?	Choose the correct choice from the following options:
A) 9:6:7
B) 9:6:9
C) 9:2:4
D) 9:6:4
E) 3:6:4

Solution: A:B = 1/2:1/3 = 3:2   B:C = 1/2:1/3 = 3:2   --------------------   A:B:C = 9:6:4   Answer:9:6:4
Answer: D
David and Rachel are getting married. The extended family wants to have its picture taken, but David's father is unwilling to stand next to Rachel's mother. How many options does the photographer have to arrange the 9 family members in a row for the picture? Select the correct option
A) 7x8!  B) 9×8!  C) 8×9!  D) 10!/2!  E) 10!

Solution: In how many ways David's father and Rachel's mother can stand together? Consider them as one unit: {F, M}. So, we'd have 9 units {F, M}, 1, 2, 3, 4, 5, 6, 7, which can be arranged in 8! ways. David's father and Rachel's mother within their unit can be arranged in 2! ways. Therefore, David's father and Rachel's mother can stand together in 8!*2! ways.   Total - Restriction =   = 9! - 8!*2! =   = 8!(9 - 2!) =   = 7*8!.   7x8!nswer: 7x8!.
Answer: A
A group of three women and three men have tickets for seven adjacent seats in one row of a theatre. If the three men will not sit in three adjacent seats, how many possible different seating arrangements are there for these 7 theatre-goers?	Choices
A) 7! – 2!3!2!	B) 6! – 4!3!	C) 7! – 5!3!	D) 7 × 2!3!2!	E) 2!3!2!

Solution: 6 people can sit in 6! different ways. But because 3 men cannot sit together, we take them as a unit.   This unit of men, among themselves can sit in 3! ways.   Hence, 6! - 3!.   This unit of men along with3 women can sit in 4! different ways which also needs to be eliminated.   Hence 6! - 4!3!   6! – 4!3!
Answer: B
Eddy and Freddy start simultaneously from city A and they travel to City B and City C respectively. Eddy takes 3 hours and Freddy takes 4 hours to complete the journey. If the distance between City A and City B is 480 kms and City A and City C is 300 kms. What is the ratio of their average speed of travel? (Eddy: Freddy)  Choose the most appropriate option.
A) 32/15	B) 3/8	C) 8/5	D) 5/8	E) 5/3

Solution: Distance traveled by Eddy = 480 km   Time taken by Eddy = 3 hours   32/15verage speed of Eddy = 480/3= 
480/3 = 160
160 km/hour   Distance traveled by Freddy= 300 km   Time taken by Freddy = 4 hours   32/15verage speed of Freddy = 300/4= 
300/4 = 75
75 km/hour   Ratio of average speed of Eddy to Freddy= 160/75 = 32/15   32/15nswer 32/15
Answer: A
A person covered one-fourth of the total distance at 26 kmph and remaining distance at 24 kmph. What is the average speed for the total distance? Options.
A) 21 (1/3) kmph B) 25 (1/3) kmph C) 29 (1/3) kmph D) 20 (1/3) kmph E) 24 (1/3) kmph

Solution: 21 (1/3) kmph   Let the total distance be x km   total time taken = (x/4)/16 + (3x/4)/24 = x/64 + x/32 = 3x/64   21 (1/3) kmphverage speed = x/(3x/64) = 64/3kmph = 21 (1/3)kmph.
Answer: A
P invested $2000 in a business and Q invested $4000 in a business. At the end of the year they got $6000 as the profit. Find their share?
Choose the correct choice from the following choices
A) $1000,$2000
B) $2000,$4000
C) $3000,$4000
D) $2000,$3000
E) $4000,$5000

Solution: P:Q = 2000:4000   P:Q = 1:2   P's share = 6000*1/3= 
6000*1/3 = 2_000
$2000   Q's share= 6000*2/3= 
6000*2/3 = 4_000
$4000   Answer is $2000,$4000
Answer: B
A team won 40 percent of its first 30 games in a particular season, and 80 percent of its remaining games. If the team won a total of 50 percent of its games that season, what was the total number of games that the team played?	Choose the correct choice from the following answers: A) 40 B) 50 C) 60 D) 70 E) 80

Solution: 50% is 10%-points above 40% and 30%-points below 80%.   Thus the ratio of "the first 30 games" to "remaining games" is 3:1.   So the team played a total of 30+10= 
30+10 = 40
40 games.   The answer is 40.
Answer: A
An article is bought for Rs.675 and sold for Rs.900, find the gain percent?	Answers.
A) 73 1/3%  B) 63 1/3%  C) 33 1/3%  D) 93 1/3%  E) 33 1/3%

Solution: Explanation:   675 ---- 225   100 ---- ? => 33 1/3%   Answer:33 1/3%
Answer: C
A candidate got 34% of the votes polled and he lost to his rival by 640 votes. How many votes were cast?	Options:	A) 2000	B) 2400	C) 2800	D) 3200	E) 3600

Solution: Let x be the total number of votes.   0.34x + 640 = 0.66x   0.32x = 640   x = 640/0.32= 
640/0.32 = 2_000
2000   The answer is 2000.
Answer: A
A rope of which a calf is tied is increased from 10 m to 20 m, how much additional grassy ground shall it graze? Choose the correct choice from the following options:
A) 540
B) 128
C) 100
D) 942
E) 942.86

Solution: π (202 – 102) = 942.86   Answer: 942.86
Answer: E
In a certain city each of 15 Girl Scout troops is represented by a colored flag. Each flag consists of either a single color or a pair of two different colors. If each troop has a different flag, what is the minimum number of colors needed for the flags. (Assume that the order of colors in a pair on a flag does not matter.)	Options:
A) 3	B) 4	C) 6	D) 5	E) 7

Solution: D.5:   if we have 5 colors we can choose pairs in 5C2 ways = 10 and single color flags are 5. Therefore total number of flags = 15.   ANS 5.
Answer: D
If 'z' is a positive integer exactly divisible by 2 or 5 but not divisible by 4 .What could possibly be the value of 'z' ?	Choices.
A) 40
B) 20
C) 12
D) 18
E) 10

Solution: 40 and 20 are both divisible by 2 and 5 but also by 4. so they are not the right answer.   12 and 18 are both clearly not divisible by 5(not correct)   10 is both divisible by 2 and 5 but not by 4.   answer : (10) 10
Answer: E
A jar contains 6 black and 2 white balls. If you pick two balls at the same time, what's the probability that one ball is black and one is white?	Pick one
A) 2/7  B) 5/7  C) 4/7  D) 3/15  E) 3/14

Solution: P(1st black, 2nd white) = 6/8*2/7 = 12/56;   P(1st white, 2nd black) = 2/8*6/7 = 12/56.   P = 12/56 + 12/56 = 24/112 = 12/56 = 6/28 = 3/14.   Answer: 3/14.
Answer: E
The average age of students of a class is 15.8 years. The average age of boys in the class is 16.4 years and that of the girls is 15.6 years, The ratio of the number of boys to the number of girls in the class is
Choices:	A) 7 : 3	B) 1 : 3	C) 9 : 3	D) 6 : 3	E) 2 : 5

Solution: Explanation:   Let the ratio be k : 1. Then,   k * 16.4 + 1 * 15.6 = (k + 1) * 15.8   <=> (16.4 - 15.8) k = (15.8 - 15.6) <=> k = 0.2/0.6 = 1/3.   Required ratio = 1/3 : 1 = 1 : 3.   Answer: 1 : 3
Answer: B
If two numbers are in the ratio 2:3. If 10 is added to both of the numbers then the ratio becomes 5:7 then find the largest number? Choose the correct choice from the following choices:
A) 40 B) 42 C) 44 D) 48 E) 50

Solution: 2:3   2x + 10 : 3x + 10 = 5 : 7   7[2x + 10] = 5[3x + 10]   14x + 70 = 15x + 50   15x - 14x = 70 - 50= 
70 - 50 = 20
20   Then the first number is= 2   2x = 40   40
Answer: A
Pipes A and B can fill a tank in 5 and 6 hours. Pipe C can empty it in 12 hours. If all pipes are opened together, then the tank will be filled in? Choose the correct option.
A) 60/17 hr  B) 13/12 hr  C) 52/11 hr  D) 6 hr  E) 63/19 hr

Solution: Net part filled in 1 hour = 1/5 + 1/6 - 1/12 = 17/60   The tank will be full in 60/17 hr   60/17 hrnswer is 60/17 hr
Answer: A
In a workshop there are 4 kinds of beds, 3 kinds of closets, 2 kinds of shelves and 4 kinds of chairs. In how many ways can a person decorate his room if he wants to buy in the workshop one shelf, one bed and one of the following: a chair or a closet?
Choose the correct choice from the following:
A) 168.
B) 80.
C) 56.
D) 48.
E) 16.

Solution: ways to select one shelf = 2   ways to select one bed = 4   ways to select one of the following: a chair or a closet = 4+3= 
4+3 = 7
7   ways to select all of them together= 2*4*7= 
2*4*7 = 56
56   Hence, 56. is the answer.
Answer: C
A necklace is made by stringing N individual beads together in the repeating pattern red bead, green bead, white bead, blue bead and yellow bead. If the necklace begins with a red bead and ends with a white bead, then N could be:  Choose the correct choice from the following answers:
A) 38
B) 77
C) 68
D) 29
E) 112

Solution: The pattern is R G W B Y R G W B Y R .......   So, White bead comes at these positions 3rd, 8th, 13th, 18th...   If we take this as a arithmetic progression, then this series can be expressed as 3 + (n - 1) 5. ( From the formula for general term of AP = a + (n-1)d).   This can be expressed as 5n - 2   We check the answer options so only 68 satisfy the condition.   Answer:68
Answer: C
What is the speed of the stream if a canoe rows upstream at 8 km/hr and downstream at 12km/hr Choose the correct option:
A) 1 kmph	B) 4 kmph	C) 3 kmph	D) 2 kmph	E) 1.9 kmph

Solution: Sol.   Speed of stream = 1/2(12 -8) kmph = 2 kmph.   Answer 2 kmph
Answer: D
Two men A and B working together complete a piece of work which it would have taken them
respectively 12 and 18 days to complete if they worked separately. They received Rs.149.25 as
their payment. Find the share of A in the amount they received?
Pick.
A) Rs. 89.55
B) Rs. 59.70
C) Rs. 85.56
D) Rs. 88.56
E) None of these

Solution: lcm of 12 and 18 is 36   no of untits of a is 3units   no of units of b is 2 units   then 5-->149.25   3--->?     ( 3*149.25)/5= 
  ( 3*149.25)/5 = 89.55
89.55   Rs. 89.55NSWER:Rs. 89.55
Answer: A
In the Johnsons' monthly budget, the dollar amounts allocated to household expenses, food, and miscellaneous items are in the ratio 5:2:2, respectively. If the total amount allocated to these three categories is $1,800, what is the amount allocated to food? Choose the correct choice from the following answers
A) $900
B) $720
C) $675
D) $400
E) $225

Solution: To solve this question, it will be best to first express the given ratio using variable multipliers. Thus, we have:   Household Expenses : Food : Miscellaneous = 5x : 2x : 2x   Since we are told that the TOTAL amount allocated to these categories is $1,800 we can set up the equation:   5x + 2x + 2x = 1,800   9x = 1,800   x = 200   Thus, the total amount allocated to food is 2 x 200= $400.   Answer $400.
Answer: D
A car covers a distance of 900 km in10 hrs. What is its speed in mps.
Choose the correct choice from the following answers:
A) 40 m/s
B) 25 m/s
C) 20 m/s
D) 15 m/s
E) 16 m/s

Solution: Explanation:   Distance = Speed x Time   Speed = (900/10)= 
(900/10) = 90
90 kmph   Spees in mps= 90 x 5/18 = 5 x 5 = 25 mps.   Answer: Option 25 m/s
Answer: B
Grace packed 5 pairs of shoes, 3 pairs of pants, 8 shirts, and 3 jackets for her business trip. If an outfit consists of one of each item of clothing except shirts, of which she will wear 2, how many different outfits D can does Grace have available during her trip?  Choose the correct choice from the following:
A) 2,520  B) 1,260  C) 620  D) 360  E) 120

Solution: The idea is to multiply the number of possibilities for each item of clothing with the different items. For the shirts you essentially choose 2 out of 8 so you should use the combination forumla (don't know how to use math symbols here).   This gives you D=5 x 3 x 28 x 3 = 1'260. Hence, solution 1,260 is correct.
Answer: B
P started from his house towards west. After walking a distance of 25 m. He turned to the right and walked 10 m. He then again turned to the right and walked 15 m. After this he is to turn right at 135o and to cover 30 m. In which direction should he go?
Choose one: A) South-We3 B) 11 C) South-West D) 112 E) 21

Solution: Answer: South-West
Answer: C
How much water must be added to 10 gallons of 10% brine solution to decrease the concentration to 7%?
Select.
A) 0—1.5 gal  B) 1.5—3 gal  C) 3—4.5 gal  D) 4.5—6 gal  E) 6+ gal

Solution: Let amount of water that must be added in gallons to dilute concentration of brine solution = x   Amount of brine already present = 10/100 * 10= 
10/100 * 10 = 1
1 gallon   1/(10+x) *100= 7   =>100 = 70 + 7x   => x= 30/7 = 4.2   Answer 3—4.5 gal
Answer: C
After an ice began to melt out from the freezer, in the first hour lost 3/4, in the second hour lost 3/4 of its remaining. If after two hours, the volume is 0.75 cubic inches, what is the original volume of the cubic ice, in cubic inches?
Select the correct option.
A) 2.5	B) 3.0	C) 4.0	D) 6.5	E) 12.0

Solution: Let initial volume of ice be = x   Ice Remaining after 1 hour = x - 0.75x = 0.25x   Ice Remaining after 2 hour = (1/4)x - (3/4 * 1/4 * x) = (1/16)x   (1/16)x = 0.75   x = 12   Alternate solution: Try to backsolve.   Initial volume = 12   After one hour --> (1/4)12 = 3   After two hours --> (1/4)3 = 0.75   Answer: 12.0
Answer: E
A day-trader plans to invest a total of $23,100 into 15 separate investments. If each investment requires a minimum deposit of $1,400, then which of the following is the maximum amount that she could put into any one investment? Select
A) $2,800	B) $3,000	C) $3,500	D) $3,800	E) $3,900

Solution: We can also just keep track of the HUNDREDS DIGITS(since the hundreds digit is different for each answer choice).   Total of 14 minimized investments = (14)(1400) = $???600   The 15th investment + $???600 = $23,100   So, the HUNDREDS DIGITS of the 15th investment must be 5   Answer: $3,500
Answer: C
The C.P of 10 pens is equal to the S.P of 15 pens. Find his gain % or loss%?	Select
A) loss 16 2/8%	B) loss 16 6/3%	C) loss 16 2/3%	D) loss 18 2/3%	E) loss 33.33%

Solution: 10 CP = 15 SP   15 --- 5   100 --- ? => 33.33% (Loss)   Answer:loss 33.33%
Answer: E
If 3y + x > 2 and x + 2y <= 3 , What can be said about the value of y? Choose the most appropriate option.
A) y = -1 B) y >-1 C) y <-1 D) y = 1 E) y = 0

Solution: 3y + x > 2 -----(1)   x + 2y < = 3   => x + 2y + y < = 3 + y   => x + 3= 
+ 3 = 3
3 + y -----(2)   from (1)&(2)   2 < 3y + x < 3 + y=> 2 < 3 + y   => -1 < y   => y > -1   ANSWER:y >-1
Answer: B
A train traveling at 216 kmph crosses a platform in 30 seconds and a man standing on the platform in 12 seconds. What is the length of the platform in meters?  Choose one:
A) 240 meters
B) 360 meters
C) 420 meters
D) 720 meters
E) Cannot be determined

Solution: Answer   Distance covered by the train when crossing a man and when crossing a platform   When a train crosses a man standing on a platform, the distance covered by the train is equal to the length of the train.   However, when the same train crosses a platform, the distance covered by the train is equal to the length of the train plus the length of the platform.   The extra time that the train takes when crossing the platform is on account of the extra distance that it has to cover. i.e., length of the platform.   Compute length of platform   Length of the platform = speed of train * extra time taken to cross the platform.   Length of platform = 216 kmph * 12 seconds   Convert 216 kmph into m/sec   1 kmph = 5/18 m/s (This can be easily derived. But if you can remember this conversion, it saves a good 30 seconds).   ∴ 216 kmph = 5/18∗216 = 60 m/sec   Therefore, length of the platform = 60 m/s * 12 sec = 720 meters.   Choice 720 meters
Answer: D
A part of certain sum of money is invested at 9% per annum and the rest at 18% per annum, if the interest earned in each case for the same period is equal, then ratio of the sums invested is?  Choose the most appropriate option.
A) 4:2	B) 2:1	C) 4:3	D) 4:0	E) 4:9

Solution: 18:9   = 2:1   Answer: 2:1
Answer: B
There are some rabbits and peacocks in a zoo. The total number of their heads is 60 and total number of their legs is 192. Find the number of total rabbits? Answers.
A) 30  B) 46  C) 40  D) 44  E) 36

Solution: Let the number of rabbits and peacocks be 'r' and 'p' respectively. As each animal has only one head, so r + p = 60 --- (1)   Each rabbit has 4 legs and each peacock has 2 legs. Total number of legs of rabbits and peacocks, 4r + 2p = 192 --- (2)   Multiplying equation (1) by 2 and subtracting it from equation (2), we get   => 2r = 72 => r = 36.   ANSW36R:36
Answer: E
what is the minimum possible range in scores of the three test-takers?Three people each took 5 tests. If the ranges of their scores in the 5 practice tests were 18, 26 and 32.	Pick
A) 26
B) 32
C) 18
D) 20
E) 30

Solution: I simply looked at the 3 different possible scores for each individual test: 18,32,26   We have to find the minimum range:    32-18= 
 32-18 = 14
14   32-26= 
32-26 = 6
6   26-18= 
26-18 = 8
8   The find the minimum range, you have to make the set of the 5 scores as small as possible.   Which means that 4 of the 5 scores of each individual person is zero.   6*5= 
6*5 = 30
30   Answer:30
Answer: E
A man walks 6 km at a speed of 1 1/2 kmph, runs 8 km at a speed of 2 kmph and goes by bus another 32 km. Speed of the bus is 8 kmph. Find the average speed of the man.	Choose one:
A) 4 (5/6) kmph  B) 3 (5/6) kmph  C) 5 (7/6) kmph  D) 6 (7/6) kmph  E) None of these

Solution: Man walked 6 km at 1.5 kmph, again he walked 8 km at speed of 2 kmph and 32 km at a speed of 8kmph   time taken indivisually:   => 6/1.5= 
6/1.5 = 4
4 m=> 8/2= 
8/2 = 4
4 m=> 32/8= 
32/8 = 4
4 m   Average speed of man= total distance/ total time   => 46/12 = 3 (5/6)   ANSWER:3 (5/6) kmph
Answer: B
Two pipes A and B can separately fill a tank in 16 and 10 minutes respectively. A third pipe C can drain off 60 liters of water per minute. If all the pipes are opened, the tank can be filled in 10 minutes. What is the capacity of the tank?
Choose the correct option:
A) 590 liters
B) 960 liters
C) 740 liters
D) 560 liters
E) 580 liters

Solution: 1/16 + 1/10 - 1/x   = 1/10   x = 12   16 * 60= 
16 * 60 = 960
960   Answer:960 liters
Answer: B
Two pipes a and b separately fill in 15/2 min and 5 min respactively and third pipe c can empty of 14l/m if all the pipes are open when the cistern is full, it is emptied in 1 hr. how many litres does the cistern hold?	Choices:
A) 40	B) 30	C) 50	D) 80	E) 54

Solution: LET TOT40L W40TER IN CISTERN=X LITER   SPEED OF 40=2X/15 L/M (SPEED=LITER/TIME)   SPEED OF B=X/5 L/M   SPEED OF C=14 L/M   40CCORDING TO QUESTION   X+(X/5+2X/15)*60=60*14   X+=60*14   X=40 LITER   40NSWER:40
Answer: A
A man wants to sell his scooter .There are two offers one at Rs12000 cash and other at a credit of Rs12880 to be paid after 8 months ,money being at 18% per annum which is better offer?	Choose the correct choice from the following answers
A) Rs.12880 B) Rs.12000 C) Both are equally good D) None of the above E) Cannot be determined

Solution: Explanation:   PW of Rs.12,880 due 8 months hence   =Rs.[12880×100/100+(18×812)]=Rs.11500=   Clearly 12000 in cash is a better offer.   Answer: Rs.12000
Answer: B
A person X working alone can complete a work in 5 days. A person Y completes the same amount of work in 15 days, and a person Z when working alone can complete the same amount of work in 30 days. All three people work together for 2 days but then X and Y leave. How many more days does Z need to complete the work after X and Y leave?  Pick:
A) 11
B) 12
C) 13
D) 14
E) 15

Solution: The fraction of work completed in two days is 2/5 + 2/15 + 2/30 = 18/30   The fraction of work remaining is 1 - 18/30 = 12/30   The number of days required for Z is 12 days.   The answer is 12.
Answer: B
Round off the given number to nearest hundreds
5672
Pick one.
A) 5800 B) 5600 C) 6000 D) 5700 E) 5900

Solution: the given number is 5672   its tens digit is 7. so replace each of the tens and ones digit by 0 and increase the hundreds digit by 1 to get the rounded off number to the nearest hundred.   correct answer (5700)
Answer: D
If k is a non-negative integer and 12^k is a divisor of 856,736 then 3^k - k^3 = Options:
A) 0	B) 1	C) 36	D) 120	E) 524

Solution: 8+5+6+7+3+6= 
8+5+6+7+3+6 = 35
35, so this number is not divisible by 3 and thus not divisible by 12.   Therefore, k=0   3^k - k^3 =1-0= 
1-0 = 1
1   The answer is 1.
Answer: B
The end of a blade on an airplane propeller is 10 feet from the center. If the propeller spins at the rate of 1,320 revolutions per second, how many miles will the tip of the blade travel in one minute? (1 mile = 5,280 feet)
Pick:
A) 200π B) 240π C) 300π D) 480π E) 1,200π

Solution: Distance traveled in 1 revolution = 2πr= 2π10/5280   Revolutions in one second= 1320   Revolutions in 60 seconds (one minute)= 1320*60   Total distance traveled= total revolutions *distance traveled in one revolution   1320*60 *2π10/5280= 300π   300π is the answer
Answer: C
A student chose a number, multiplied it by 2, then subtracted 138 from the result and got 102. What was the number he chose?  Choose the correct choice from the following choices: A) 120 B) 240 C) 360 D) 480 E) 510

Solution: Let x be the number he chose, then   2*x-138=102   2x=240   x=120   correct answer 120
Answer: A
A and B can do a piece of work in 16 days, B and C in 24 days, C and A in 12 days. How long will C take to do it?	Answers:
A) 16 days
B) 55 days
C) 24 days
D) 32 days
E) 22 days

Solution: 2c = 1/24 + 1/12 – 1/16 = 1/16   c = 1/32 => 32 days   Answer: 32 days
Answer: D
Company S produces two kinds of stereos: basic and deluxe. Of the stereos produced by Company S last month, 2/3 were basic and the rest were deluxe. If it takes 8/5 as many hours to produce a deluxe stereo as it does to produce a basic stereo, then the number of hours it took to produce the deluxe stereos last month was what fraction of the total number of hours it took to produce all the stereos?  Choose the correct answer:	A) 7/17	B) 14/31	C) 4/9	D) 17/35	E) 1/2

Solution: # of basic stereos was 2/3 of total and # of deluxe stereos was 1/3 of total, let's assume total=15, then Basic=10 and Deluxe=5.   Now, if time needed to produce one Deluxe stereo is 1 unit than time needed to produce one Basic stereo would be 8/5 units. Total time for Basic would be  10*1= 
 10*1 = 10
10 and total time for Deluxe would be 5*8/5= 
5*8/5 = 8
8 --> total time for both of them would be 10+8= 
10+8 = 18
18 --> deluxe/total=8/18=4/9.   Answer: 4/9.
Answer: C
The simple interest on a certain sum of money at the rate of 5% p.a. for 8 years is Rs. 840.At what rate of interest the same amount of interest can be received on the same sum after 5 years ?  Choose the correct choice from the following options
A) 6%
B) 8%
C) 9%
D) 10%
E) None

Solution: Solution   S.I. = Rs. 840,R =5%,T= 8 Years.   Principal = Rs.(800x840/5x8)= Rs. 2100.   Now,P = Rs. 2100,S.I. = Rs. 840, T = 5 years.   ∴ Rate =(100x840/2100x5) = 8%.   Answer 8%
Answer: B
A sum fetched a total simple interest of 4043.25 at the rate of 9 %.p.a. in 5 years. What is the sum?	Pick
A) 5768 B) 8985 C) 2345 D) 6474 E) 8723

Solution: Principal = (100 x 4043.25)/(9 x 5)   = 404325/45= 
404325/45 = 8_985
8985.   ANSWER 8985
Answer: B
Addison High School’s senior class has 160 boys and 200 girls. If 75% of the boys and 84% of the girls plan to attend college, what percentage of the total class plan to attend college?	Choose the correct answer:	A) 75	B) 79.5	C) 80	D) 83.5	E) 84

Solution: Number of boys attending the party : 0.75*160= 
0.75*160 = 120
120   number of girls attending the party:  0.84*200= 
 0.84*200 = 168
168   Total attending= 120+168= 
120+168 = 288
288   Total people= 160+200= 
160+200 = 360
360   % of people attending= 288/360 = 80%. 80 is the correct answer
Answer: C
A tiger is chasing its prey at a constant speed. It entire body passes a blade of grass in 1 second. It then runs above a fallen tree trunk that is 20 meters long in 5 seconds. What is the length of the tiger?  Choices
A) 6 m  B) 5 m  C) 4 m  D) 3 m  E) None of the above

Solution: Sol.Let the length of the tiger be x metres and its speed be y m/sec. Then, x / y = 1 ⇒ y = x∴ (x + 20) / 5 = x ⇔ x = 5 m. Answer 5 m
Answer: B