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B. Number Of Attempted

C. Number Of Correct Answer

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If from a group of 5 people, an old member is replaced by a new one, the average age is same as it was 3 years ago. What is the difference between the ages of the old member and the new one?

A. 12 Wrong Right

B. 15 Wrong Right

C. 11 Wrong Right

D. 18 Wrong Right

Answer : 15

Explanation : The present average age is (x + 3) when the old member is present and it equals to x when an old member is replaced by a new one.
The difference in the ages of the old member and the new one is equal to the difference in the total age before and after the replacement = 15 years.

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The banker's discount of a certain sum of money is Rs. 72 and the true discount on the same sum for the same time is Rs. 60. The sum due is:

A. Rs. 360 Wrong Right

B. Rs. 432 Wrong Right

C. Rs. 540 Wrong Right

D. Rs. 1080 Wrong Right

Answer : Rs. 360

Explanation :

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A man rows at the rate of 5 kmph in still water. If the river runs at the rate of 1.5 kmph, it takes him 1 hour to row to a place and back. What is the distance?

A. 2 km 275 m Wrong Right

B. 3 km 275m Wrong Right

C. 5 km 100 m Wrong Right

D. 3 km 280 m Wrong Right

Answer : 2 km 275 m

Explanation : Man’s rate downstream = (5 + 1.5) kmph = 6.5 kmph
=> Man’s rate upstream = (5 – 1.5) kmph = 3.5 kmph
=> Let the distance be x km
=> Total time taken to row x km and back
=> = (x / 6.5 + x / 3.5) = 1
=> x = 2.275 km
thus the distance = 2 km 275 m

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If 1st January 1980 is a Sunday then what will be the day on 9th September 1985?

A. Thursday Wrong Right

B. Tuesday Wrong Right

C. Friday Wrong Right

D. Monday Wrong Right

Answer : Friday

Explanation : If 1st January 1980 is a Sunday then what will be the day on 9th September 1985
From 1980 to 1984 there are 3 ordinary years and one leap year
Number of odd days = 3+2=5 odds
1st January 1985 to 9th September 1985 no of days = 31+28+31+30+31+30+31+31+9= 252 = 0 (221/7) odd days
Therefore total number of odd days = 5 + 0 = 5 odd days , which is a Friday

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An industrial loom weaves 0.128 metres of cloth every second. Approximately, how many seconds will it take for the loom to weave 25 metres of cloth?

A. 178 Wrong Right

B. 195 Wrong Right

C. 204 Wrong Right

D. 488 Wrong Right

Answer : 195

Explanation : Le the required time be x seconds.
More metres, More time (Direct Proportion)

=> 0.128 : 25 :: 1 : x
=> 128x = 25 x 1

x = 25 = 25 x 1000
0.128 128

x = 195.31.
Required time = 195 sec (approximately).

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The angle between the minute hand and the hour hand of a clock when the time is 8.30 is

A. 80 degrees Wrong Right

B. 75 degrees Wrong Right

C. 60 degrees Wrong Right

D. 105 degrees Wrong Right

Answer : 75 degrees

Explanation : Angle traced by hour hand in 17/2 hours = (360/12 * 17/2) degrees = 255 degrees
Angle traced by minute hand in 30 min = (360/60 * 30) degrees =180 degrees
Hence, Required angle = (255 - 180) degrees = 75 degrees

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The value of a refrigerator that was purchased 2 years ago, depreciates at 12% per annum. If its present value is Rs. 9680, how much was it purchased

A. Rs. 12145 Wrong Right

B. Rs. 12142 Wrong Right

C. Rs. 12700 Wrong Right

D. Rs. 12500 Wrong Right

Answer : Rs. 12500

Explanation : Let the cost price if the refrigerator be Rs. V
The present value of the refrigerator = V( 1- 12/100)2 = V(22/25)2
∴ 9680 = V×(22/25) ×(22/25)
V= Rs. 12500

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892.7 – 573.07 – 95.007 =?

A. 22.623 Wrong Right

B. 224.777 Wrong Right

C. 233.523 Wrong Right

D. 414.637 Wrong Right

Answer : 224.777

Explanation : (892.7 – 573.07 – 95.007) = 224.777

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Find the wrong number in sequence 36, 54, 18, 27, 9, 18. 5, 4.5

A. 4.5 Wrong Right

B. 18.5 Wrong Right

C. 54 Wrong Right

D. 18 Wrong Right

Answer : 18.5

Explanation : The terms are alternatively multiplied by 1.5 and divided by 3. However 18.5 does not satisfy it

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10.

Suresh’s salary is 60% more than Ramesh’s salary. Suresh got a 50% increment in his salary while Ramesh got 20% increment. By what percent is Suresh’s salary more than Ramesh?

A. 90% Wrong Right

B. 96% Wrong Right

C. 92% Wrong Right

D. 100% Wrong Right

Answer : 100%

Explanation : Initially if the salary of Ramesh is 100, then, the salary of Suresh is 160.
Now Suresh gets an increment of 50%. Therefore his salary becomes 240.
The increment in Ramesh’s salary is by 20% and his salary becomes 120.
Hence, Suresh’s salary is more than Ramesh’s salary by 100%

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11.

A tank has a leak at its bottom which empties it at 6 litres/minutes. It also has a filling tap which can fill the tank in 6 hours. The tank takes 18 hours to become full. Find the capacity of the tank.

A. 3130 litres Wrong Right

B. 3240 litres Wrong Right

C. 3340 litres Wrong Right

D. 3000 litres Wrong Right

Answer : 3240 litres

Explanation : Explanation: Let the time that would be taken by the leak to empty the full tank be
=> x hours ,
=> 1/6 – 1/x = 1/18
=> x = 9
Capacity of the tank = (6) (9) (60) = 3240 litres

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12.

A train 360 m long is running at a speed of 45 km/hr. In what time will it pass a bridge 140 m long?

A. 40 sec Wrong Right

B. 42 sec Wrong Right

C. 45 sec Wrong Right

D. 48 sec Wrong Right

Answer : 40 sec

Explanation : Formula for converting from km/hr to m/s: X km/hr = X x (5/18) m/s.
Therefore, Speed = 45 x (5/18) m/sec = 25/2 m/sec.
Total distance to be covered = (360 + 140) m = 500 m.
Formula for finding Time = Distance / Speed
Required time = (500 x 2 sec)/25 = 40 sec.

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13.

What is a single discount equivalent to two successive discounts of 15% and 20%?

A. 32% Wrong Right

B. 35% Wrong Right

C. 30% Wrong Right

D. 25% Wrong Right

Answer : 32%

Explanation : Single discount equivalent to two successive discounts of x% and y%
= [x + y – xy/100]
= [15 + 20 – (15*20/100)]
= [35 – 3]
= 32%

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14.

If 5 = 2.236, then the value of 5/2 - 10/5 + 125 is equal to:

A. 5.59 Wrong Right

B. 7.826 Wrong Right

C. 8.944 Wrong Right

D. 10.062 Wrong Right

Answer : 7.826

Explanation :

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15.

A can do a piece of work in 45 days. He works at it for 5 days and then B completes it in 20 days. How long will A and B together take to complete the work?

A. 14 × 1/3 days Wrong Right

B. 15 days Wrong Right

C. 13 × 1/3 days Wrong Right

D. 14 days Wrong Right

Answer : 15 days

Explanation : Explanation: In one day A does 1/45 of the work.
In 5 days A does 5/45 = 1/9 of the work
Remaining part of the work = 1 – 1/9= 8/9
B takes 20 days to do 8/9 of the work.
In one day B will do 8 / 9×20 = 2/45 of the work
Working together ( A & B ) will complete 1/45 + 2/45
= 3/45 = 1/15 of the work
They will take 45/3 days, i.e. 15 days

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