MU-NLPC/Calc-aqua_rat huggingface dataset:
The odds against ram solving the problem are 5 to 3 and the odds in favour of krishna solving the same are 7 to 5. What is the chance that it will be solved when they both try?	Choices.
A) 1/4	B) 5/21	C) 16/21	D) 23/28	E) 71/96

Solution: Odds against Ram are 5:3 so probability that he will solve the problem is 3/8.   Odds in favor of Krishna are 7:5 so probability that he will solve it is 7/12   It will be solved means that either Ram or Krishna or both will be able to solve it.   P(A or B) = P(A) + P(B) - P(A and B) = 3/8 + 7/12 - (3/8)*(7/12) = 71/96   71/96
Answer: E
A father said to his son, "I was as old as you are at the present at the time of your birth". If the father's age is 54 years now, the son's age five years back was?  Choose the correct choice from the following choices:
A) 18years B) 19years C) 20years D) 21years E) 22years

Solution: Let the son's present age be x years. Then, (54 - x) = x   2x = 54.   x = 27.   Son's age 5 years back (27 - 5)= 
(27 - 5) = 22
22 years.   22years
Answer: E
The distance between Station Atena and Station Barcena is 90 miles. A train starts from Atena towards Barcena. A bird starts at the same time from Barcena straight towards the moving train. On reaching the train, it instantaneously turns back and returns to Barcena. The bird makes these journeys from Barcena to the train and back to Barcena continuously till the train reaches Barcena. The bird finally returns to Barcena and rests. Calculate the total distance in miles the bird travels in the following two cases:
(a) The bird flies at 90 miles per hour and the speed of the train is 60 miles per hour.
(b) the bird flies at 60 miles per hour and the speed of the train is 90 miles per hour Choose the correct option:
A) 135miles,60miles
B) 134miles,60miles
C) 135miles,70miles
D) 136miles,60miles
E) 135miles,80miles

Solution: A) There is no need to consider their meeting pointt at all.   The train has been running for 90miles/(60miles/hr)=1.5hrs.   bird flies till train reaches destination from starting point.so bird flies for1.5hrs at the vel given(90).so distance=1.5*90= 
1.5*90 = 135
135miles   b) time of train=1hr.so distance of bird=60*1= 
60*1 = 60
60miles   135miles,60milesnswer 135miles,60miles
Answer: A
At what rate percent of simple interest will a sum of money double itself in 11 years? Choose the correct choice from the following options.
A) 9.09 %
B) 4.54 %
C) 8 .2 %
D) 4.94 %
E) 5.54 %

Solution: Let sum = x. Then, S.I. = x.   Rate = (100 * S.I.) / (P * T) = (100 * x) / (x * 11)   = 100/11 = 9.09 %   9.09 %NSWER:9.09 %
Answer: A
The population of a city is 415600.It increased by 25% in the first year and decreased by 30% in the second year.What is the population of the city at the end of second year?	Choose the most appropriate option
A) 367300  B) 363580  C) 363650  D) 373650  E) 386750

Solution: As per given data, P = 415600, R1= 25% incresed, R2 = 30% decreased   Population of the city at the end of the second year= P (1+R1/100) (1-R2/100)   = 415600 (1+25/100) (1-30/100)   =363650   ANSWER:363650
Answer: C
Jo's collection contains US, Indian and British stamps. If the ratio of US to Indian stamps is 5 to 2 and the ratio of Indian to British stamps is 5 to 1, what is the ratio of US to British stamps?  Pick one.
A) 25 : 8	B) 25 : 0	C) 25 : 8	D) 25 : 2	E) 25 : 9

Solution: Indian stamps are common to both ratios. Multiply both ratios by factors such that the Indian stamps are represented by the same number.   US : Indian = 5 : 2, and Indian : British = 5 : 1. Multiply the first by 5, and the second by 2.   Now US : Indian = 25 : 10, and Indian : British = 10 : 2   Hence the two ratios can be combined and US : British = 25 : 2   Answer:25 : 2
Answer: D
A completes a work in 12 days and B complete the same work in 24 days. If both of them work together, then the number of days required to complete the work will be?  Choose the correct answer: A) 8 days B) 9 days C) 11 days D) 13 days E) 14 days

Solution: If 8 days can complete a work in x days and B can complete the same work in y days, then, both   of them together can complete the work in x y/ x+ y days   Therefore, here, the required number of days = 12 × 24/ 36 = 8 days   8 days)
Answer: A
Of the 50 researchers in a workgroup, 40 percent will be assigned to Team A and the remaining 60 percent to Team B. However, 60 percent of the researchers prefer Team A and 30 percent prefer Team B. What is the lowest possible number of researchers who will NOT be assigned to the team they prefer?	Choose one.
A) 10
B) 17
C) 20
D) 25
E) 30

Solution: I solved it by assuming 100 people and then dividing my answer in two to save time on calculations. (percentage equals number of people) In that case   40 will be in team A   60 will be in team B   The larger diff is   70 want team A so diff is 60-40= 
60-40 = 20
20. At least 20 people will NOT get their wish, so for 50 researchers the same number is 10.   10nswer choice 10
Answer: A
Rs. 2600 is divided into three parts A, B and C. How much A is more than C if their ratio is 1/2:1/3:1/4?	Choose the correct choice from the following answers:
A) 187	B) 187	C) 300	D) 600	E) 555

Solution: 1/2:1/3:1/4   = 6:4:3   3/13*2600   = 300   Answer: 600
Answer: D
A dishonest dealer professes to sell goods at the cost price but uses a weight of 600 grams per kg, what is his percent?
Select:  A) 28%  B) 66.7%  C) 55%  D) 28%  E) 55%

Solution: 600 --- 400   100 --- ? => 66.7%   Answer: 66.7%
Answer: B
A trader bought a car at 20% discount on its original price. He sold it at a 40% increase on the price he bought it. What percent of profit did he make on the original price?	Choose one:
A) 12% B) 15 % C) 86 % D) 42 % E) 16%

Solution: Explanation:   Original price = 100   CP = 80   S = 80*(140/100)= 
80*(140/100) = 112
112   100 - 112= 12%   12%nswer:12%
Answer: A
A cistern has a leak which would empty the cistern in 20 minutes. A tap is turned on which admits 4 liters a minute into the cistern, and it is emptied in 24 minutes. How many liters does the cistern hold?  Choose the correct option: A) 480 B) 488 C) 882 D) 269 E) 298

Solution: 1/x - 1/20 = -1/24   x = 120   120 * 4= 
120 * 4 = 480
480   480nswer: 480
Answer: A
The length of a train and that of a platform are equal.If with a speed of 90 kmph the train crosses the platform in one minute,then the length of the train in metres is Choose one:  A) 500  B) 600  C) 750  D) 900  E) 950

Solution: 2x will be the distance travelled by the train if the length of the train= the length of the platform = x as distance= speed*time   distance=2x   speed in kmph=90   speed in mps=90*5/18   as dist=speed*time   2x=(90*5/18)*(60sec)   on solving x=900mts   ANSWER:900
Answer: D
A and B started a business with their capitals Rs. 3,00,000 and 18,00,000 respectively. Annual profit will be distributed between them in the ratio	Choose the correct option.
A) 2:5
B) 2:3
C) 1:3
D) 1:6
E) 1:9

Solution: 3,00,000:18,00,000   Ans. 1:6   ANSWER:1:6
Answer: D
A house seller can deduct 5 percent from the total sales value. If he has sold 5 houses, and the price of two houses is between $150,000 and $200,000, one of them is $300,000 house, two houses are between $500,000 and 750,000, what is the range of his revenue? Choose the correct answer.
A) 700  B) 720  C) 740  D) 680  E) 690

Solution: (1) 2(150)+300+2(500) = 1600   1600*0.95= 
1600*0.95 = 1_520
1520 (Revenue considering the minimum values with the discount)   (2) 2(200)+300+2(750)= 2200 (Revenue considering the maximum values without the discount)   So, the the revenue range could be = 2200 - 1520= 
2200 - 1520 = 680
680   680
Answer: D
Ravi buys 100 5% shares of face value Rs.100 at Rs.15000 .If he sells
them off after a year at Rs 155 a share ,what is his yield ?  Choose the correct choice from the following choices:
A) 8.33%	B) 6.67%	C) 5%	D) 3.33%	E) 4.33%

Solution: clearly the shares have been bought at 150 a share.   Since they are 5% shares he gets a return of 5% of 100 =Rs5 at the end of the year.rs 5 for 100 shares= 500 rs   NOw selling them again at 5 rs profit per share he gains another 500 rupees. Yield = (1000/15000)*100=6.67   ANSWER:6.67%
Answer: B
What percent of 180 is 45?	Choose the most appropriate option:	A) 0.25%	B) 4%	C) 25%	D) 40%	E) 250%

Solution: Here's an algebraic approach.   Let p = the required percent.   This means p/100 = the percent as a fraction.   So, "What percent of 180 is 45?" becomes "(p/100) of 180 = 45   Or: (p/100)(180) = 45   Divide both sides by 180 to get: p/100 = 45/180   Simplify right side: p/100 = 1/4   Multiply both sides by 100 to get: p = 25   ANSWER:25%
Answer: C
a is an integer greater than 29 but less than 41, b is an integer greater than 39 but less than 51, what is the range of a/b?	Select
A) 1/4
B) 1/2
C) 2/5
D) 1
E) 5/4

Solution: min value of a/b will be when b is highest and a is lowest ---> a=30 and b=50   So, a/b = 3/5   max value of a/b will be when b is lowest and a is highest ---> a=40 and b=40   So, a/b = 1   Range is 1-(3/5) =2/5   Answer should be 2/5.
Answer: C
In a mixture 60 litres, the ratio of milk and water 2 : 1. If the this ratio is to be 1 : 2, then the quanity of water to be further added is  Choose the correct choice from the following options
A) 20 liters  B) 30 liters  C) 50 liters  D) 60 liters  E) None of these

Solution: Explanation:   Quantity of Milk = 60*(2/3)= 
60*(2/3) = 40
40 liters   Quantity of water= 60-40= 
60-40 = 20
20 liters   As per question we need to add water to get quantity 2:1=> 40/(20+x) = 1/2   => 20 + x = 80   => x = 60 liters   Option 60 liters
Answer: D
A boy rides his bicycle 10 km at an average speed of 12 km/hr and again travels 12 km at an average speed of 10 km/hr. His average speed for the entire trip is approximately.  Pick one:
A) 10.2 km/hr
B) 10.4 km/hr
C) 10.6 km/hr
D) 10.8 km/hr
E) None of these

Solution: Explanation :   Total distance traveled = (10+12)= 
(10+12) = 22
22 km   Total time taken= [10/12 + 12/10] hrs = 61/30 hrs   Average speed = [22*30/61] km/hr = 10.8 km/hr.   Answer : 10.8 km/hr
Answer: D
What distance (in meters) will be covered by a bus moving at 72 km/hr in 40 seconds?
Choose the correct choice from the following.
A) 740 B) 800 C) 860 D) 920 E) 980

Solution: 72 km/hr = 72 * 5/18= 
72 * 5/18 = 20
20 m/s   distance= 20 * 40= 
20 * 40 = 800
800 meters   The answer is 800.
Answer: B
In a certain game there are 6 steps, referred to as step 1, step 2, and so on with the final step being step 6. The steps are played one after the other. In each step a score of 1, 2, 3, 4, or 5 is obtained. Roslin played the game, getting at least one score of each of 1, 2, 3, 4, and 5, and never getting the same score in consecutive steps. What is the greatest possible score that Roslin could have gotten?	Options.
A) 30
B) 25
C) 20
D) 15
E) 10

Solution: There are two conditions:   1. Roslin got at least one score of each of 1, 2, 3, 4, and 5.   2. She never got the same score in consecutive steps.   Taking that into account, the greatest possible score that Roslin could have gotten is   5 + 1 + 5 + 2 + 5 + 3 + 5 + 4= 
  5 + 1 + 5 + 2 + 5 + 3 + 5 + 4 = 30
30.   30nswer: 30.
Answer: A
How many seconds will a 500 meter long train take to cross a man walking with a speed of 3 km/hr in the direction of the moving train if the speed of the train is 63 km/hr?  Choose the correct choice from the following options:
A) 200
B) 300
C) 500
D) 600
E) 700

Solution: Let length of tunnel is x meter   Distance = 800+x meter   Time = 1 minute = 60 seconds   Speed = 78 km/hr = 78*5/18 m/s = 65/3 m/s   Distance = Speed*Time   800+x = (65/3) * 60   800+x = 20 * 65= 
20 * 65 = 1_300
1300   x= 1300 - 800= 
1300 - 800 = 500
500 meters   Answer: Option 500
Answer: C
At a local beach, the ratio of little dogs to average dogs to enormous dogs is 2:5:8. Late in the afternoon, the ratio of little dogs to average dogs doubles and the ratio of little dogs to enormous dogs increases. If the new percentage of little dogs and the new percentage of average dogs are both integers and there are fewer than 30 total dogs at the beach, which of the following represents a possible new percentage of enormous dogs?
Choose the correct answer.
A) 25%
B) 40%
C) 50%
D) 55%
E) 70%

Solution: Little 55%ogs(L), Average 55%ogs(A) and Enormous 55%ogs (E)   The initial ratio for L:A:E :: 2:5:8   Initial Total dogs = 15X ( x assumed; 2+5+8= 
2+5+8 = 15
15), Since the total dogs are less than 30 therefore initial total value has to be 15   L= 2, A = 5 E = 8   L:A= 2:5   This ratio doubles   Hence New 55%og count is   L= 4 , A = 5 E= X: Also 4+5+x<30   We need to Find X*100/(4+5+X)   Now it says that new percentage of little dogs and Average dogs is an integer   %L = 4*100/(9+x) %A = 5*100/(9+x); Only Value for X is 11 ; 9+x<30 and % integer   Therefore, Enormous 55%ogs % is = 11*100/(20)= 
11*100/(20) = 55
55%   ANSWER:55%
Answer: D
The perimeter of a rhombus is 52 units. One of its diagonal is 24 units. What is its second diagonals length?  Choose the correct answer: A) 5 B) 10 C) 15 D) 20 E) 25

Solution: When the perimeter of a triangle is 52 units each side is 13 units   Next, the diagonal of a rhombus bisect each other at 90 degree   Thus the half of the diagonal is 12 units   Now in a right angle triangle so formed, the perpendicular is 12 and the hypptenuse is 13(that is the side of the triangle)   Finding the base(which is half of the other diagonal):   13^2-12^2 =25   Thus half of the diagonal is 5 and the diagonaL IS 10UNITS   ANSWER:10
Answer: B
In order to obtain an income of Rs. 500 from 30% stock at Rs. 90, one must make an investment of
Options:
A) Rs.1550
B) Rs.1430
C) Rs.1450
D) Rs.1400
E) Rs.1500

Solution: Explanation :   Market Value = Rs. 90   Required Income = Rs. 500.   Here face value is not given. Take face value as Rs.100 if it is not given in the question   To obtain Rs.30 (ie,30% of the face value 100), investment = Rs.90   To obtain Rs.15000, investment = 90/30Ã—500=Rs.1500   Answer : Option Rs.1500
Answer: E
An ice cream store received shipments of ingredients on Tuesday and Wednesday. Tuesday's shipment had 3 different packages, with an average (arithmetic mean) of 10 and 2/3 pounds. Wednesday's shipment included 7 packages, weighing an average of 8 and 3/7 pounds. What was the average package weight, in pounds, of the shipments received on both days?  Choose the correct choice from the following:  A) 9 pounds  B) 10 and 1/10 pounds  C) 10 and 2/5 pounds  D) 11 pounds  E) 11 and 1/7 pounds

Solution: Solution: Average weight = Total weight/number of packages. The total weight on Tuesday was 3 * (10 and 2/3 pounds), or 35 pounds. The total weight on Wednesday was 7 * (8 and 3/7 pounds), or 66 pounds. The sum of the weights for both days is 59 + 32, or 101 pounds. The average is 91 pounds/10 packages, or 9 pounds per package.   Correct answer: 9 pounds
Answer: A
A box contains nine slips that are each labeled with one number: 1, 2, 3, 5, 8, 21, 34 and 55. Two of the slips are drawn at random from the box without replacement. What is the probability that the sum of the numbers on the two slips is equal to one of the numbers left in the box?  Choose the most appropriate option.
A) 7/72
B) 1/6
C) 1/7
D) 15/36
E) 21/36

Solution: Probability = No: of desired outcomes / Total No: of outcomes.   You are picking two slips out of 8 slips. So   Total No: of outcomes = 8C2 = 28   Desired outcome : sum of the numbers on the two slips is equal to one of the numbers left in the box. How many such outcomes are there?   If you look at the numbers closely, you will see that the following pair of numbers will give you the desired outcome.   (1,2) (2,3) (3,5) (21,34) . There are 4 such pairs. If the two numbers which I pick is from any of these 4 pairs, then I get my desired outcome.   So No: of desired outcomes = 4   Probability = 4/28=1/7   Answer :1/7
Answer: C
A truck uses 60-gallon fuel tank wants to travel to Cleveland, which is 480 miles away. The driver recognizes that the current engine, which can travel only 10 miles per gallon, will not get him there. By how many miles per gallon of fuel efficiency be improved to make the truck to Cleveland possible?  Choose the correct choice from the following answers:
A) 2	B) 6	C) 8	D) 5	E) 4

Solution: Actual miles/gallon is = 480/60= 
480/60 = 8
8 miles/gallon.   Current engine miles/gallon is 10 miles/gallon.   Additional 2 miles/gallon is required to match the actual mileage.   2NSWER:2
Answer: A
The entire contents of a full sack of flour can be used to make 15 cupcakes and 8 pizzas. The same full sack of flour can be used to make 6 cupcakes and 14 pizzas. If a full sack of flour is used to make only pizzas, how many pizzas can be made?	Answers:	A) 18 1/4	B) 18 1/2	C) 18 3/4	D) 18	E) 19 1/4

Solution: 15x+8y=6x+14y   x=2/3y. Answer 18
Answer: D
How much is 65% of 40 is greater than 4/5 of 25?  Choose the correct answer.
A) 29  B) 776  C) 66  D) 12  E) 6

Solution: (65/100) * 40 – (4/5) * 25   26 - 20= 
26 - 20 = 6
6   Answer: 6
Answer: E
A and B together have Sterling 1250. If 4/15 of A's amount is equal to 2/5 of B's amount, how much amount does B have?
Select.
A) Sterling 460	B) Sterling 484	C) Sterling 500	D) Sterling 664	E) None

Solution: Explanation: 4/15A = 2/5B   A = (2/5 x 15/4)B   A = 3/2 B   A/B = 3/2   A : B = 3 : 2.   B's share = Sterling (1250 x 2/5) = Sterling 500.   Answer: Option Sterling 500
Answer: C
At a party, there were two times as many females as males and same times as many adults as children. Which of the following could NOT be the number of people at the party?  Choose the most appropriate option
A) 384
B) 258
C) 216
D) 121
E) 72

Solution: Five times as many females as males --> F = 2M.   Three times as many adults as children --> (F + M) = C.   The number of people at the party = F + M + C = C + C = 2C.   The number of people at the party must be a multiple of 2. The only answer choice which is NOT a multiple of 4 is 2.   Answer: 121.
Answer: D
A cistern can be filled by a tap in 5 hours while it can be emptied by another tap in 10hours. If both the taps are opened simultaneously then after how much time will the cistern get filled?
Choose the correct choice from the following choices:  A) 20hr  B) 10hr  C) 5hr  D) 4hr  E) 15hr

Solution: Net part filled in 1 hour 1/5 - 1/10 = 1/10   The cistern will be filled in 10hr   Answer is 10hr
Answer: B
Tom is having a cookout. 9 people want steak, 27 people want grilled chicken breast, and 13 people want bratwurst. Each steak cost $21.00, each chicken breast cost $3.24, and each bratwurst cost $4.30. What is the average price per piece of meat Tom paid?
Choose the correct option.
A) $332.38	B) $6.78	C) 14.74	D) 28.54	E) 9.51

Solution: Explanation:   9 27 13   $21.00 $3.24 $4.30   $189.00 + $87.48 + $55.90 = $332.38/49  189.00 +  87.48 +  55.90= 
 189.00 +  87.48 +  55.90 = 332.38
$332.38/49= $6.78   $6.78
Answer: B
If the sum of three consecutive positive integers is A, then the sum of the next five consecutive integers in terms of A is: Choose the correct answer.
A) 3A+5	B) 3A/5	C) 3A/5 + 12	D) 5A/3	E) 5A/3 + 20

Solution: In Case of Consecutive Integers or Integers in Arithmetic Progression Mean = Median   I.e. Median = A/3 = Mean = Second Integer   First Integer = A/3 - 1   Second Integer = A/3   Third Integer = A/3 + 1   I.e.   Fourth Integer = A/3 + 2   Fifth Integer = A/3 + 3   Sixth Integer = A/3 + 4   Seventh Integer = A/3 + 5   Eighth Integer = A/3 + 6   Now Mean of next 5 Integers = Median = A/3 + 4   i.e. Sum of Next 5 integers = (A/3 + 4)*5 = 5A/3 +20   Answer: option 5A/3 + 20
Answer: E
Jim’s Taxi Service charges an initial fee of $2.35 at the beginning of a trip and an additional charge of $0.35 for each 2/5 of a mile traveled. What is the total charge for a trip of 3.6 miles?  Choose one
A) $3.15
B) $4.45
C) $4.80
D) $5.5
E) $5.40

Solution: Let the fixed charge of Jim’s Taxi Service = 2.35 $   and charge per 2/5 mile(.4 mile) = .35$   Total charge for a trip of 3.6 miles = 2.35 + (3.6/.4) * .35   = 2.35 + 9*.35= 
2.35 + 9*.35 = 5.5
5.5 $   Answer $5.5
Answer: D
Excluding stoppages, the speed of a bus is 54 kmph and including stoppages, it is 45 kmph. For how many minutes does the bus stop per hour?	Choose the correct choice.
A) 9  B) 10  C) 12  D) 16  E) 20

Solution: Due to stoppages, it covers 9 km less.   Time taken to cover 9 km = 9/54	x 60	min	= 10 min.   Answer: 10
Answer: B
Four staff members at a certain company worked on a project. The amounts of time that the four staff members worked on the project were in the ratio 2 to 3 to 5 to 6. If one of the four staff members worked on the project for 90 hours, which of the following CANNOT be the total number of hours that the four staff members worked on the project?
Choose the correct choice from the following choices.
A) 720  B) 480  C) 288  D) 192  E) 240

Solution: Four members worked in ration 2:3:5:6, hence as everyone mentioned, individual work could be taken as 2x, 3x,5x, and 6x. Also this gives us total work as 16x.   But we are told that one of these individual works is 90hrs. hence, possible scenarios, if   (1)2x =90 => 16x = 720 (2) 3x =90 => 16x = 480 (3) 5x =90 => 16x = 288 (4) 6x =90 => 16x = 240   Hence Answer is 192 192 which can not be any of these.
Answer: D
Man is 24 years older than his son. In two years, his age will be twice the age of his son. The present age of his son is: Choose the correct choice:
A) 20	B) 22	C) 12	D) 15	E) 17

Solution: consider x = x+24   x+24 + 2 = 2(x+2)   x+26=2x+4   x=22   ANSWER 22
Answer: B
UBA Capital recently bought Brand new vehicles for office use. UBA capital only went for Toyota and Honda and bought more of Toyota than Honda at the ratio of 4:6. If 40% of the Toyota bought and 60% of the Honda bought were SUVÃ¢â‚¬â„¢s. How many SUVÃ¢â‚¬â„¢s did UBA capital buy in the aforementioned purchase?
Options: A) 66% B) 64% C) 68% D) 69% E) 52%

Solution: let total no of Vehicles bought be 100, Toyota 40 and Honda 60, so total number of SUV's bought for Toyota and Honda respectively  40* 40/100= 
 40* 40/100 = 16
16 and   60* 60/100= 
  60* 60/100 = 36
36   so total 52 SUV's were bought out of 100 Vehicles bought..so required % is 52%   ANSW52%R:52%
Answer: E
In what time will a railway train 60 m long moving at the rate of 36 kmph pass a telegraph post on its way?  Choose the correct choice from the following.
A) 5 sec  B) 4 sec  C) 3 sec  D) 6 sec  E) 1 sec

Solution: T = 60/36 * 18/5= 
60/36 * 18/5 = 6
6 sec   Answer: 6 sec
Answer: D
A can do a work in 6 days , B can do a work in 8 days and C can do it in 12 days. B left work after 2 days. For how many number of days should A and C should work together to complete the remaining work ? Choose the correct choice from the following answers:
A) 1/2
B) 2/3
C) 1/3
D) 4/3
E) 5/2

Solution: b work 1/8 * 2=1/4   remaining work =1-1/4=3/4   a and c work together =1/6+1/12=3/12=1/4   take reciprocal 3/4 * remaining work =4/3 *1/4=1/3   ANSWER:1/3
Answer: C
There are some pigeons and hares in a zoo. If heads are counted, there are 200. If legs are counted, there are 680. The number of hares in the zoo is?	Choose one:
A) 90 B) 99 C) 77 D) 140 E) 221

Solution: 200*2= 
200*2 = 400
400   680   -----   280   1----2   ?----280=140   Answer:140
Answer: D
Find the sum of first 89 odd numbers Choose the most appropriate option
A) 7921 B) 4800 C) 7900 D) 4980 E) 4960

Solution: Explanation:   n2 = 892 = 7921   7921nswer: Option 7921
Answer: A
What number should replace the question mark?
123, 124, 126, 132, 133, 136, 142, 143, 147, ?
Select the correct option
A) 154  B) 634  C) 165  D) 134  E) 164

Solution: A   154   Add the first digit to arrive at the second number i.e. 123 + 1 = 124, then the second digit i.e. 124 + 2 = 126, then the third digit etc.
Answer: A