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A batsman is out for 23 runs, which raises his average for the season from 15 to 16. How many runs would he have to score in that innings (in which he scored 23) to bring his average up to 18?

A. 33 Wrong Right

B. 37 Wrong Right

C. 39 Wrong Right

D. 42 Wrong Right

Answer : 39

Explanation : Had the batsman scored 15 runs in the last inning, his average would have been constant at 15. He scores 8 runs more than 15, which raises his average by 1.
∴ The last must have been his 8 / 1 = 8th innings.
To raise his average by 3, he required to score 8 × 3 = 24 runs more than his previous average in the 8th innings => he need to score 39

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What day of the week was january 12, 1979?

A. Monday Wrong Right

B. Friday Wrong Right

C. Tuesday Wrong Right

D. Saturday Wrong Right

Answer : Friday

Explanation : January 12, 1979 = 1979 years + 12 days
1600 years : 0 odd days
300 years : 1 odd day
78 years have 19 leap years + 59 ordinary years i.e. 38 + 59 i.e. 97 i.e. 6 odd days
12 days of January have 5 odd days
Total number of odd days = 0 + 1+ 6+5 = 12 i.e. 5 odd days
∴ the day on January 12 , 1979 was a Friday

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A two storeyed building is to be completed in 48 days. To meet the deadline 54 men were employed and were made to work for 10 hours a day. After 30 days 5/9th of the work was completed. How many more workers should be employed to meet the deadline if each workers are now made to work 8 hours a day?

A. 36 Wrong Right

B. 90 Wrong Right

C. 40 Wrong Right

D. 50 Wrong Right

Answer : 36

Explanation : 54 men work 10 hours a day for 30 days and 5/9th of the work is completed.
Now, let x workers be employed to work 8 hours a day for the rest 18 days to complete 4/9th of the work.
M1D1T1W2 = M2D2T2W1
54*30*10*4/9 = x*18*8*5/9
x = 90
Hence, 36 more workers should be employed.

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A clock is started at noon. By 10 mins past 5, the hour hand has turned through

A. 145 degrees Wrong Right

B. 150 degrees Wrong Right

C. 155 degrees Wrong Right

D. 160 degrees Wrong Right

Answer : 155 degrees

Explanation : Angle traced by hour hand in 12 hours = 360 degrees
Angle traced by hour hand in 5 hours 10 min i.e 31/6 hrs = (360/12 * 31/6) degrees = 155 degrees

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Find the compound interest on Rs. 2000 at 5% per annum payable half yearly for 1 ½ years?

A. Rs.151.80 Wrong Right

B. Rs. 153.78 Wrong Right

C. Rs. 315.25 Wrong Right

D. Rs. 75.50 Wrong Right

Answer : Rs. 153.78

Explanation : n = 1 ½ years = 3 half years
R= 5% per annum = 2.5% per half year
A = 2000 ( 1 + 2.5/100)3 = 2153.78
∴ CI= A – P = 2153.78 - 2000 = Rs. 153.78

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(?) 3 + 543 + 5.43 = 603.26

A. 5 Wrong Right

B. 6 Wrong Right

C. 8 Wrong Right

D. None of theese Wrong Right

Answer : 8

Explanation : Let x + 543 + 5.43 = 603.26
Then x = 603.26 – (543 + 5.43) = 603.26 – 548.43 = 54.83
Hence the missing digit is 8.

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A and B entered into partnership with capitals in the ratio 4 : 5. After 3 months, A withdrew 1/4 of his capital and B withdrew 1/5 of his capital. The gain at the end of 10 months was Rs. 760. A's share in this profit is:

A. Rs. 330 Wrong Right

B. Rs. 360 Wrong Right

C. Rs. 380 Wrong Right

D. Rs. 430 Wrong Right

Answer : Rs. 330

Explanation :

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The price of a commodity is increased by 15%. By what percent should its consumption be decreased so as to not increase the expenditure?

A. 90% Wrong Right

B. 300/23% Wrong Right

C. 100/3% Wrong Right

D. 100/11% Wrong Right

Answer : 300/23%

Explanation : 300/23%

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A large tanker can be filled by two pipes A and B in 60 minutes and 40 minutes respectively. How many minutes will it take to fill the tanker from empty state if B is used for half the time and A and B fill it together for the other half?

A. 15 min Wrong Right

B. 20 min Wrong Right

C. 27.5 min Wrong Right

D. 30 min Wrong Right

Answer : 30 min

Explanation :

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10.

Q is as much younger than R as he is older than T. If the sum of the ages of R and T is 50 years, what is definitely the difference between R and Q's age?

A. 1 year Wrong Right

B. 2 years Wrong Right

C. 25 years Wrong Right

D. Data inadequate Wrong Right

E. None of these Wrong Right

Answer : Data inadequate

Explanation : 1. The difference of age b/w R and Q = The difference of age b/w Q and T.
2. Sum of age of R and T is 50 i.e. (R + T) = 50.
Question: R - Q = ?.
Explanation:
R - Q = Q - T
(R + T) = 2Q
Now given that, (R + T) = 50
So, 50 = 2Q and therefore Q = 25.
Question is (R - Q) = ?
Here we know the value(age) of Q (25), but we don't know the age of R.
Therefore, (R-Q) cannot be determined.

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11.

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 38 years now, the son's age five years back was:

A. 14 years Wrong Right

B. 19 years Wrong Right

C. 33 years Wrong Right

D. 38 years Wrong Right

Answer : 14 years

Explanation : Let the son's present age be x years. Then, (38 - x) = x
2x = 38.
x = 19.
Son's age 5 years back (19 - 5) = 14 years.

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12.

A train going at the rate of 72 km/hr over takes another train 192 meters long, going in the same direction on a parallel line at 54 km per hour and completely passes it in 1 ½ minutes. Find the time in which the trains would have completely passed each other, if they had been going in opposite directions, and also the length of the faster train

A. 218 m, 13 6/7 secs Wrong Right

B. ] 258 m, 12 6/7 secs Wrong Right

C. 268 m, 12 6/7 secs Wrong Right

D. 250 m, 14 6/7 secs Wrong Right

Answer : ] 258 m, 12 6/7 secs

Explanation : the length of the faster train b l m.
=> The two trains move at a relative speed of (72 – 54) = 18 kmph
=>(192 + l) / [(1000)(18)] = 1.5/60 = l = 258 m
=>If the trains move in opposite directions they approach each other at a relative speed of (72 + 54) = 126 kmph
=>The time taken to pass completely (192 + 258) / [(1000)(126)]3600
= 12 6/7 sec

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13.

A merchant buys 20kg of a variety of rice at Rs. 1.50 per kg and 40 kg of another variety of rice at 90 paise per kg. He mixes them and sells one third of the mixture at Rs. 1 per kg. at what rate should he sell the remaining mixture so that he may earn a profit of 25% on the whole outlay?

A. Rs. 1.5625/kg Wrong Right

B. Rs. 1.10/kg Wrong Right

C. Rs. 1.375/kg Wrong Right

D. Rs. 1 / kg Wrong Right

Answer : Rs. 1.5625/kg

Explanation : Cost Price of 60kg rice = 20(1.50) + 40(0.9) = Rs. 66
Selling Price of 20kg = Rs. 20
Let Selling Price of 40kg = Rs. x
20 + x = 66[125/100]
40 + 2x = 165
2x = 125
x = Rs. 6.25
Selling price of 1 kg = 6.25 / 40 = Rs. 1.5625 / kg

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14.

The square of how many two digit number have 8 in unit’s place?

A. 2 Wrong Right

B. 6 Wrong Right

C. 8 Wrong Right

D. None of these Wrong Right

Answer : None of these

Explanation : No number ending with 8 can be a perfect square.

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15.

A is 30% more efficient than B. How much time will they, working together, take to complete a job which A alone could have done in 23 days?

A. 11 days Wrong Right

B. 13 days Wrong Right

C. 20 3/17 days Wrong Right

D. None of these Wrong Right

Answer : 13 days

Explanation :

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