MU-NLPC/Calc-aqua_rat huggingface dataset:
A pipe can fill a cistern in 14 minutes whereas the cistern when fill can be emptied by a leak in 28 minutes. When both pipes are opened, find when the cistern will be full?	Pick one
A) 17
B) 16
C) 28
D) 13
E) 12

Solution: 1/14 - 1/28 = 1/28   28 minutes   Answer: 28
Answer: C
There are two sections C and D of a class, consisting of 18 and 22 students respectively. If the average weight of sections C is 20 kg and that of sections D is 18 kg. Find the average weight of the whole class
Select:
A) 18.7 B) 18.8 C) 18.9 D) 19.9 E) None

Solution: Solution   Total weight of(18+22)Students	= (18x20+22x18)Kg   = 756 kg.   Average weight of the whole class	= (756 /40 )   = 18.90.   Answer 18.9
Answer: C
A certain library assesses fines for overdue books as follows. On the first day that a book is overdue, the total fine is $0.05. For each additional day that the book is overdue, the total fine is either increased by $0.30 or doubled, whichever results in the lesser amount. What is the total for a book on the fifth day it is overdue? Select the correct option:  A) $0.60  B) $0.70  C) $0.80  D) $0.90  E) $1.00

Solution: 1st day fine - 0.05   2nd day fine - 0.05*2 = 0.1 (as doubling gives lower value)   3rd day fine - 0.1*2 = 0.2 (as doubling gives lower value)   4th day fine - 0.2 *2 = 0.4 (as doubling gives lower value we add 0.3 this time)   5th day fine - 0.4 +0.3 = 0.7 (as doubling gives higher value we add 0.3 this time)   Answer: $0.70.
Answer: B
A can do a job in 20 days and B can do it in 30 days. A and B working together will finish thrice the amount of work in ------- days?  Choose the most appropriate option:
A) 22 days  B) 22 days  C) 36 days  D) 72 days  E) 24 days

Solution: 1/20 + 1/30 =5/60 = 1/12   12/1= 
12/1 = 12
12 *3= 
12 *3 = 36
36 days   Answer: 36 days
Answer: C
Points M(-15,2) and N(5,-5) lie on the xy - plane. What is the midpoint of line segment MN?  Choose the correct choice from the following
A) (5,0)	B) (0,5)	C) (0, (136^(1/2))/2)	D) (-5,-3/2)	E) (1,5)

Solution: The midpoint of a segment is exactly halfway between its endpoints and it's location can be found using the Midpoint Theorem, which states:   • The x-coordinate of the midpoint is the average of the x-coordinates of the two endpoints.   • Likewise, the y-coordinate is the average of the y-coordinates of the endpoints.   So, x=(-15+5)/2=-5 and y=(2-5)/2=-3/2 --> coordinates of the midpoint are (-5, -3/2).   Answer: (-5,-3/2).
Answer: D
Siddharth wants to borrow Rs.9000 at rate of interest 6% p.a. at S.I and lend the same amount at C.I at same rate of interest for two years. What would be his income in the above transaction? Choose the correct choice from the following
A) s.21.60  B) s.21.29  C) s.32.40  D) s.21.26  E) s.21.12

Solution: Amount of money Siddharth borrowed at S.I at 6% p.a. for two years = Rs.9,000   He lend the same amount for C.I at 6% p.a. for two years.   => Siddharth's income = s.32.40.I - S.I   = p[1 + r/ 100]n - p - pnr/100   = p{ [1 + r/ 100]2 - 1 - nr/100   = 9,000{ [1 + 6/100]2 - 1 - 12/100}   = 9,000 {(1.06)2- 1 - 0.12} = 9,000(1.1236 - 1 - 0.12)   = 9,000 (0.0036) = 9 * 3.6 = Rs.32.40   Answer: s.32.40
Answer: C
The difference between a two-digit number and the number obtained by interchanging the positions of its digits is 36. What is the difference between the two digits of that number?
Select the correct option:
A) 4
B) 5
C) 6
D) 8
E) 9

Solution: Sol.   Let the ten’s digit be x and unit’s digit be y,   Then, (10x + y) - (10y + x) = 36 ⇔ 9 (x - y) = 36   ⇔ x - y = 4   4nswer 4
Answer: A
The numbers 1, 2, 3, .....n are written in the natural order. Numbers in odd places are struck off to form a new sequence. This process is continued till only one number is left.
Q 1: If n = 1997, the number left is?
Q 2: If the number left is 512, the maximum possible value of n is  Choose the correct answer.
A) 1023 B) 3667 C) 267 D) 288 E) 66

Solution: The given sequence is 1, 2, 3, ....n   After step 1, we have 2, 4, 6, 8, ......   After step 2, we have 4, 8, 12, 16, ....   After step 3, we have 8, 16, 24, 32, ......   After the last step (m th step) we have the highest power of 2m ≤ n.   1. If n = 1997, after step 10, we are left with only 1024 (as 210 ≤ 1997)   2. If the last number left is 512, the maximum possible value of n is 1023.   1023nswer:1023
Answer: A
Find the fourth proportion to 2,3,6
Select the correct option.
A) 18  B) 12  C) 9  D) 4  E) 6

Solution: Explanation:   2:3 :: 6:x   => 2/3 = 6/x   => x = 18/2   => x = 9   Answer:9
Answer: C
What was the day of the week on 27th April, 2006?
Choose the correct choice from the following answers:	A) Monday	B) Sunday	C) Saturday	D) Thursday	E) Friday

Solution: 28 May, 2006 = (2005 years + Period from 1.1.2006 to 28.5.2006)   Odd days in 1600 years = 0   Odd days in 400 years = 0   5 years = (4 ordinary years + 1 leap year) = (4 x 1 + 1 x 2) 6 odd days   Jan. Feb. March April   (31 + 28 + 31 + 27 )= 
(31 + 28 + 31 + 27 ) = 117
117 days   117 days= (16 weeks + 5 day) 1 odd day.   Total number of odd days = (0 + 0 + 6 + 5)= 
(0 + 0 + 6 + 5) = 11
11 0 odd day.   Given day is Thursday.   Answer: Option Thursday
Answer: D
4 men and 3 women are lined up in a row. What is the number of cases where they stand with each other in turn? (The number of cases in which men (or women) do not stand next to each other)	Choose one:  A) 12  B) 144  C) 18  D) 21  E) 24

Solution: The list should be WMWMW. Hence, from women 3! And men 4!, we get (3!)(4!)=144. Therefore, the correct answer is 144.
Answer: B
A and B invests Rs.10000 each, A investing for 8 months and B investing for all the 12 months in the year. If the total profit at the end of the year is Rs.25000, find their shares?	Choose the correct choice from the following answers.
A) 15088 B) 15086 C) 15017 D) 15000 E) 15018

Solution: The ratio of their profits A:B = 8:12 = 2:3   Share of A in the total profit = 2/5 * 25000 = Rs.10000 Share of A in the total profit = 3/5 * 25000 = Rs.15000.Answer: 15000
Answer: D
The Italian size of a suit jacket is N centimeters, where N is the linear distance between the armpits when the jacket is laid on a flat surface. The American size of a suit jacket is P inches, where P is twice the linear distance between the armpits when the jacket is laid on a flat surface. If, for a particular jacket, N = P + 15, which of the following is closest to the value of N? (One inch is approximately 2.54 centimeters.)	Choose the most appropriate option:
A) 36 B) 47 C) 58 D) 68 E) 72

Solution: Since one inch is approximately 2.54 centimeters, then N centimeters is N/2.54 inches.   Next, since the American size (P inches) is twice the Italian size (N/2.54 inches), then P=2*N/2.54.   As given that N = P + 15, then N=2*N/2.54+15 --> N=~68.   Answer: 68.
Answer: D
A can do a piece of work in 4 days of 8 hours each and B alone can do it in 8 days of 8 hours each.how long will they take it to do working together
10 2/3 hours a day? Choices.
A) 4 days  B) 3 days  C) 2 days  D) 5 days  E) 6 days

Solution: A's work per hour=1/32   B's work per hour=1/64   A & B's work per hour together=(1/32)+(1/64)=3/64   so A & B together complete the work in 64/3 hours... if they work 10 2/3=32/3 hours a day,   it will take  (64/3)/(32/3)= 
 (64/3)/(32/3) = 2
2 days...   ANSWER: 2 days
Answer: C
The average temperature for Monday, Tuesday, Wednesday and Thursday was 48 degrees and for Tuesday, Wednesday, Thursday and Friday was 46 degrees. If the temperature on Monday was 40 degrees. Find the temperature on Friday?	Choose the correct choice from the following options:  A) 65 degrees  B) 32 degrees  C) 37 degrees  D) 34 degrees  E) 74 degrees

Solution: M + Tu + W + Th = 4 * 48= 
4 * 48 = 192
192   Tu + W + Th + F= 4 * 46= 
4 * 46 = 184
184   M= 40   Tu + W + Th = 192 -40= 
192 -40 = 152
152   F= 184 – 152 = 32   Answer:32 degrees
Answer: B
A certain industrial machine requires 15 quarts (480 ounces) of oil every day, and it is given a mixture of oil A and oil B. Oil A consists of 7% special additives while oil B consists of 10% special additives. If the machine needs exactly 30 ounces of the special additives to ensure smooth operation, then how much of oil A, in ounces, should be in the mixture? Pick:  A) a.	A – 260  B) b.	B – 280  C) c. C – 290  D) d.	D – 300  E) e.	E – 600

Solution: 7%*x + 10% *(480-x)=30   18 = 3 %*x   x=600   e.	E – 600
Answer: E
A rectangular plot has a concrete path running inner side of the plot is used as a lawn, which has an area of 432 sq.m. If the width of the path is 4 m and the length of the plot is greater than its breadth by 2m, what is the area of the rectangular plot?  Options:	A) 980 m^2	B) 975 m^2	C) 984 m^2	D) 960 m^2	E) 965 m^2

Solution: Let width of plot be 'b', length = b+2.   Then b(b+2) - (b-8)(b-6) = 432   Thus width = 30 m, length = 32 m and area = 960 sq.m   ANSWER:960 m^2
Answer: D
Look at this series: 8, 43, 11, 41, __, 39, 17, ... What number should fill in the blank? Choose the correct choice from the following.
A) 8
B) 14
C) 43
D) 44
E) 45

Solution: Explanation: This is a simple alternating addition and subtraction series. The first series begins with 8 and adds 3; the second begins with 43 and subtracts 2.   Answer: Option 14
Answer: B
A trader sold an item at a loss of 35%. if he had increased the price by $80 he would have made a gain of 5%. what is the cost price of the item?  Choose the correct answer:  A) $245  B) $150  C) $260  D) $220  E) $250

Solution: Let C.P. be $x   Then 105% of x - 65% of x = 100   40% of x = 100   40/100 *x = 100   40x = 10 000   x = 250   Answer is $250
Answer: E
Consider four digit numbers for which the first two digits are equal and the last two digits are also equal. How many such numbers are perfect squares ?  Select:
A) 3 B) 2 C) 4 D) 0 E) 1

Solution: Explanation :   If we let the four-digit number be XXYY, then this number can be expressed as:   1000X + 100X + 10Y + Y = 1100X + 11Y = 11(100X + Y) = k^2 (since it's a perfect square)   In order for this to be true, 100X + Y must be the product of 11 and a perfect square, and looks like X0Y. So now our question is "which product of 11 and a perfect square looks like X0Y?" We can test them:   11 x 16 = 176; 11 x 25 = 275; 11 x 36 = 396; 11 x 49 = 593; 11 x 64 = 704; 11 x 81 = 891   The only one that fits the bill is 704.   This means there is only one four-digit number that works, and it's 7744.   Answer : 1
Answer: E
The average age 9 members of a committee are the same as it was 4 years ago, because an old number has been replaced by a younger number. Find how much younger is the new member than the old number?	Choose one:	A) 20 years	B) 21 years	C) 18 years	D) 29 years	E) 36 years

Solution: 9 * 4= 
9 * 4 = 36
36 years   Answer:36 years
Answer: E
When positive integer x is divided by positive integer y, the remainder is 7. If x/y = 86.1, what is the value of y?  Choose the correct choice from the following answers.
A) 72	B) 71	C) 70	D) 30	E) 45

Solution: When positive integer x is divided by positive integer y, the remainder is 7 --> x=qy+7;   x/y=86.1 --> x=86y+0.1y (so q above equals to 86);   0.1y=7 --> y=70.   Answer: 70.
Answer: C
Alex can do a piece of in 120 days and peter can do same work in 180 days,both are working together for 30 days after that peter left the job. then in how many days Alex alone complete the remaining work? Choose the correct answer:	A) 17.5 DAYS	B) 25 DAYS	C) 15 DAYS	D) 12 DAYS	E) 30 DAYS

Solution: First take LCM of (120,180) = 3600; Total work =3600; Alex's one day work = 3600/120= 
3600/120 = 30
30; peter's one day work=3600/180= 
3600/180 = 20
20; One day work of both Alex+peter= 30+20= 
30+20 = 50
50; Total work completed in 30 days= 30*50= 
30*50 = 1_500
1500; remaining work is= 3600 - 1500= 
3600 - 1500 = 2_100
2100; remaining work completed by Alex in= 2100/120= 
2100/120 = 35/2 = around 17.5
17.5 days. 17.5 DAYSnswer=17.5 DAYS
Answer: A
In an IT company, there are a total of 70 employees including 50 programmers. The number of male employees is 80, including 35 male programmers. How many employees must be selected to guaranty that we have 3 programmers of the same sex?  Choose the correct answer
A) 10  B) 25  C) 55  D) 35  E) 65

Solution: You could pick 70 non-programmers, 2 male programmers, and 2 female programmers, and still not have 3 programmers of the same sex. But if you pick one more person, you must either pick a male or a female programmer, so the answer is 25.   25
Answer: B
What is the sum of all possible solutions to |x - 4|^2 + |x - 4| = 20 ?  Answers:
A) 4  B) 5  C) 6  D) 7  E) 3

Solution: Denote |x - 4| as y: y^2 + y = 20 --> y = -5 or y = 4. Discard the first solution since y = |x - 4|, so it's an absolute value and thus cannot be negative.   y = |x - 4| = 4 --> x = 8 or x = -1. The sum = 7.   Answer: 7.
Answer: D
The perimeter of an isosceles right triangle is 12 + 12 sq rt 2. What is the length of the hypotenuse of the triangle? Choose the correct answer: A) 5 B) 6 C) 7 D) 8.485 E) 8

Solution: side of triangle is a then perimeter = a+ a +a.sqrt2 ( right angle and pythagorus) =2a +a .sqrt 2 = 12 + 12 Sqrt2 or,   a. ( 2+ sqrt2) = 12(1 + sqrt2), a= 12*(1+sqrt2)/2+sqrt2 =12*2.414/3.414 = then hypotenuse = 8.485   8.485
Answer: D
A person spends 40% of his salary on food, 25% on house rent, 15% on entertainment and 5% on conveyance. If his savings at the end of the month is Rs. 3000, then his salary per month in rupees is:
Options.
A) 20000  B) 6000  C) 8000  D) 10000  E) None of these

Solution: Total expenditure = 40 + 25 + 15 + 5= 
40 + 25 + 15 + 5 = 85
85%   Saving= (100 - 85)= 
(100 - 85) = 15
15%   15/100 × Salary= 3000, Salary = 20000 Rs.   20000nswer:20000
Answer: A
If (x + 1) times (4x + 1) is an odd integer, then x must be:	Choose the correct choice from the following answers
A) an odd integer
B) an even integer
C) a prime number
D) a composite number
E) a negative integer

Solution: Solution:   (x + 1) times (4x + 1) means (x + 1)(4x + 1)   (x + 1)(4x + 1) = 4x^2+5x+1   For 4x^2+5x+1 to be odd, 5x+1 must be odd since 4x^2 is always even.   So 5x must be even, hence x must be even.   Therefore x is an even integer.   Answer: an even integer
Answer: B
Q is not equal to zero and k = (Q x n - s)/2 find n?  Choose the correct option.
A) (2 x k + s)/Q
B) (2 x s x k)/Q
C) (2 x k - s)/Q
D) (2 x k + s x Q)/Q
E) (k + s)/Q

Solution: k = (Q x n - s)/2   => Q x n - s = 2 x k   => Q x n = 2 x k + s   => n = (2 x k + s)/Q   (2 x k + s)/QNSWER:(2 x k + s)/Q
Answer: A
The average age of a committee of 9 members is 42 years. A member aged 63 years retired and his place was taken by another member aged 54 years . The average age of
present committee is;  Choose the correct option: A) 39 years B) 38 years C) 36 years D) 41 years E) 37 years

Solution: Total age of the committee = 42*9= 
42*9 = 378
378,   Total age when a member is retired   and a new one was joined= 378-63 +54, =369   Average age of present committee = 369/9= 
369/9 = 41
41.   ANSWER:41 years
Answer: D
A certain university will select 1 of 6 candidates eligible to fill a position in the mathematics department and 2 of 9 candidates eligible to fill 2 identical positions in the computer science department. If none of the candidates is eligible for a position in both departments, how many different sets of 3 candidates are there to fill the 3 positions?
Pick one:
A) 216 B) 212 C) 214 D) 210 E) 120

Solution: 1C6*2C9 = 6*36= 
6*36 = 216
216   the answer is (216)
Answer: A
How many ways the letters of the word ‘ARMNUR’ can be arranged? Choose the correct choice from the following answers:
A) 230
B) 235
C) 360
D) 380
E) 400

Solution: Total number of letters = 6 and R is repeated twice.   Required arrangements = (6! / 2!) = 360   360
Answer: C
Three cards are drawn successively, without replacement from a pack of 52 well shuffled cards.
What is the probability that first two cards are queens and the third card drawn is an ace?
Choose the correct option:  A) 2  B) 2/5525  C) 2/5527  D) 3  E) None

Solution: Let Q denote the event that the card drawn is queen and A be the event that   the card drawn is an ace. Clearly, we have to find P (QQA)   Now P(Q) = 4/52   Also, P (Q|Q) is the probability of second queen with the condition that one queen has   already been drawn. Now there are three queen in (52 - 1)= 
(52 - 1) = 51
51 cards.   Therefore P(Q|Q)= 3/51   P(A|QQ) is the probability of third drawn card to be an ace, with the condition   that two queens have already been drawn. Now there are four aces in left 50 cards.   Therefore P(A|QQ) = 4/50   By multiplication law of probability, we have   P(QQA) = P(Q) P(Q|Q) P(A|QQ)   = 4/52 × 3/51 × 4/50   = 2/5525.   Answer: Option '2/5525'
Answer: B
A can give B 100 meters start and C 200 meters start in a kilometer race. How much start can B give C in a kilometer race? Choose the correct option:	A) 111.12	B) 111.18	C) 131.12	D) 211.12	E) 111.17

Solution: A runs 1000 m while B runs 900 m and C runs 800 m.   The number of meters that C runs when B runs 1000 m,   = (1000 * 800)/900 = 8000/9 = 888.88 m.   B can give C = 1000 - 888.88= 
1000 - 888.88 = 111.12
111.12 m.   111.12nswer:111.12
Answer: A
A rectangular field has to be fenced on three sides leaving a side of 20 feet uncovered. If the area of the field is 680 sq. feet, how many feet of fencing will be required?  Choose the correct choice from the following.
A) 80 feet	B) 85 feet	C) 83 feet	D) 88 feet	E) 90 feet

Solution: Given that area of the field = 680 sq. feet   => lb = 680 sq. feet   Length(l) = 20 feet   => 20 × b = 680   => b = 680/20= 
680/20 = 34
34 feet   Required length of the fencing= l + 2b = 20 + (2 × 34) = 88 feet   Answer is 88 feet.
Answer: D
The average of first 8 prime numbers is?	Choose one.
A) 10.11 B) 9.625 C) 12.11 D) 13.11 E) 14.11

Solution: Sum of first 8 prime nos. = 2+3+5+7+11+13+17+19= 
2+3+5+7+11+13+17+19 = 77
77   Average= 77/8= 
77/8 = 77/8 = around 9.625
9.625   Answer : 9.625
Answer: B
The price of 10 bat is equal to that of 4 balls. The price of 15 balls and 2 bats together is Rs. 4000. The total price of 12 chairs and 3 balls is:	Choose the correct choice from the following answers
A) Rs. 3200
B) Rs. 3500
C) Rs. 3700
D) Rs. 3900
E) Rs. 4000

Solution: Let the cost of a chair and that of a table be Rs. x and Rs. y respectively.   Then, 10x = 4y or y = 5 x.   2   15x + 2y = 4000   15x + 2 x 5 x = 4000   2   20x = 4000   x = 200.   So, y = 5 x 200 = 500.   2   Hence, the cost of 12 chairs and 3 tables = 12x + 3y   = Rs. (2400 + 1500)   = Rs. 3900.   Rs. 3900)
Answer: D
The length of a rectangular plot is thrice its breadth. If the area of the rectangular plot is 867 sq m, then what is the breadth of the rectangular plot?	Select
A) 65 m	B) 17 m	C) 16 m	D) 76 m	E) 27 m

Solution: Let the breadth of the plot be b m.   Length of the plot = 3 b m   (3b)(b) = 867   3b2 = 867   b2 = 289 = 172 (b > 0)   b = 17 m.   Answer:17 m
Answer: B
A money lender lends Rs.2000 for six months at 20% p.a. rate. It the interest is reckoned quarterly than find the amount given after time limit.	Choose the correct choice from the following answers:
A) 22075
B) 2622
C) 2677
D) 2666
E) 267

Solution: Explanation:   22075 = 2000(21/20)2 = 2205   22075nswer: 22075
Answer: A
You can collect as many rubies and emeralds as you can. Each ruby is worth Rs. 4 crore and each emerald is worth Rs. 5 crore. Each ruby weighs 0.3 kg. And each emerald weighs 0.4 kg. Your bag can carry at the most 12 kg. What should you collect to get the maximum wealth?  Choose the correct answer:  A) 20 rubies and 15 emeralds  B) 40 rubies  C) 28 rubies and 9 emeralds  D) None of these  E) Cannot be determined

Solution: Explanation :   The limits our wealth is the capacity of bag which is 12 Kg. So we should make each unit of weight to worth the max.   Rubee: 0.3 Kg worth 4 Crore,   so 1 Kg of Rubee is worth 4/(0.3) = 40/3 = 13.33 Crore.   Emerald: 0.4 Kg worth 5 crore   so 1 Kg of Emerald is worth 5/(0.4) = 50/4= 
50/4 = 25/2 = around 12.5
12.5 Crore.   As value per kilogram is more for Rubee we should pick max rubees for max wealth.   Here we can accomadate the whole 12Kg with 40 rubees which is worth 160 Crore.   Answer : 40 rubies
Answer: B
A train overtakes 2 girls who are walking inthe opposite direction in which the train is going at the rate of 3 km/hour & 6km/hour and passes them completely in 36sec & 30 sec respectively. Find the length of the train is?	Select.
A) 120 m  B) 130 m  C) 150 m  D) 200 m  E) 250 m

Solution: Let the length of the train e x meter, and let the speed of train be y km/h, then   \inline x=\left ( y+3 \right )\frac{5}{18}\times 36 ........(1)   and \inline x=\left ( y+6\right )\frac{5}{18}\times 30 ........(2)   From eq (1) and (2), we get   \inline (y+3)\times 36 = ( y+6)\times 30   y = 12 km/h   \inline \therefore \inline x=(y+3)\times \frac{5}{18}\times 36   x= 150 m   150 m
Answer: C
Find the principle on a certain sum of money at 7% per annum for 2 2/5 years if the amount being Rs.1120?	Pick
A) 939.6  B) 958.9  C) 927.78  D) 926.82  E) 902.1

Solution: 1120 = P [1 + (7*12/5)/100]   P= 958.90   Answer: 958.9
Answer: B
The ratio of the present age of Viju to that of Aju is 7:2. Four years from now, the ratio of the ages of Viju to Aju will be 5:2. What was Viju age 6 years ago ? Choose the most appropriate option.
A) 10 years	B) 15 years	C) 20 years	D) 25 years	E) 30 years

Solution: Let the present age of Viju be 7x years and that of Aju be 2x years.   Then, 4 years from now   7x + 4 / 2x + 4 = 5 / 2   or 4x = 12   or x = 3   Viju present age = 7 * 3= 
7 * 3 = 21
21 years   Viju age 6 years ago= 21 - 6= 
21 - 6 = 15
15 years   answer :15 years
Answer: B
A straight line in the xy- plane has y-intercept of 12 and a slope of 4/7. Given the x-coordinate of the point is 49, find it's y-coordinate.	Choose the correct choice from the following answers:
A) 27	B) 16	C) 29.7	D) 28	E) 18

Solution: Eq of line = Y = MX +C   M=4/7   C=12   X=49   Substitute the givens:   Y=(4/7 * 49) + 12,   Y=16 + 12= 
16 + 12 = 28
28   Correct option is 28
Answer: D
The average age of a husband, wife and their child 3 years ago was 27 years and that of wife and the child 5 years ago was 20 years. The present age of the husband is:	Pick one
A) 20  B) 17  C) 21  D) 19  E) 30

Solution: Sum of the present ages of husband, wife and child = (23 * 2 + 5 * 2) = 57 years.   Required average = 57/3= 
57/3 = 19
19 years.   ANSWER 19
Answer: D
The cost price of an article is 64% of the marked price. Calculate the gain percent after allowing a discount of 15%?	Choose the correct choice from the following choices
A) 32.8%	B) 37.6%	C) 38.5%	D) 17.5%	E) 37.2%

Solution: Let marked price = Rs. 100.   Then, C.P. = RS. 64, S.P. = Rs. 85   Gain % = 21/64 * 100 = 32.8%.   32.8%nswer: 32.8%
Answer: A
A goods train runs at the speed of 72 km/hr and crosses a 280 m long platform in 26 sec. What is the length of the goods train?	Choose the correct choice from the following choices
A) 240 B) 277 C) 276 D) 270 E) 281

Solution: Speed = 72 * 5/18= 
72 * 5/18 = 20
20 m/sec.   Time= 26 sec.   Let the length of the train be x meters.   Then, (x + 280)/26 = 20   x = 240 m.   240nswer: 240
Answer: A
Find the number of square tiles to cover the floor of a room measuring 4.5 m * 9.5 m leaving 0.25 m space around the room. A side of square tile is given to be 25 cms?	Choices.
A) 422  B) 576  C) 429  D) 428  E) 413

Solution: Floor area to be covered by tiles = 4 * 9= 
4 * 9 = 36
36   tiles area= 0.25 * 0.25= 
0.25 * 0.25 = 0.0625
0.0625   No. of tiles= 36/0.0625= 
36/0.0625 = 576
576   Answer : 576
Answer: B
The railway track length, which a train 130 metres long and travelling at 45 km/hr can cross in 30 seconds, is:
Pick:
A) 300 m
B) 245 m
C) 350 m
D) 250 m
E) 260 m

Solution: speed = (45*5/18) => 25/2 m/sec   time = 30 sec   length of bridge => x   =>130+x/30 = 25/2   2(130+x)=750   x=245 m   ANSWER 245 m
Answer: B
An athlete runs 200 metres race in 20 seconds. What is his speed?
Choose the correct choice from the following
A) 23 B) 38 C) 37 D) 36 E) 28

Solution: Speed=36istance/Time = 200/20= 
200/20 = 10
10 m/s= 10 * 18/5= 
10 * 18/5 = 36
36 km/hr   Answer :36
Answer: D