494
Q:

The average of runs of a cricket player of 10 innings was 32. How many runs must he make in his next innings so as to increase his average of runs by 4 ?

A) 76 B) 79
C) 85 D) 87

Answer:   A) 76



Explanation:

Average = total runs / no.of innings = 32 

So, total = Average x no.of innings = 32 x 10 = 320.

 

Now increase in avg = 4runs. So, new avg = 32+4 = 36runs 

Total runs = new avg x new no. of innings = 36 x 11 = 396 

Runs made in the 11th inning = 396 - 320 = 76

Q:

9 years ago, the average age of a family of five members was 33 years. Now, three new members join whose ages are in ascending order with consecutive gaps of 8 years. If the present average age of the family is the same as it was 9 years ago, what is the age (in years) of the eldest new member?

 

A) 29 B) 26
C) 35 D) 17
 
Answer & Explanation Answer: B) 26

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0 38
Q:

The average age of four brothers is 15 years. If their father is included, the average is increased by 5 years. The age of the father (in years) is:

 

A) 36 B) 38
C) 35 D) 35
 
Answer & Explanation Answer: D) 35

Explanation:
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1 204
Q:

The average age of fifteen persons is 32 years. If two more persons are added then the average is increased by 3 years. The new persons have an age difference of 9 years between them. The age (in years) of the elder among the new persons is:

 

A) 62 B) 53
C) 50 D) 58
 
Answer & Explanation Answer: A) 62

Explanation:
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7 575
Q:

The average age of fifteen persons is 32 years. If two more persons are added then the average is increased by 3 years. The new persons have an age difference of 9 years between them. The age (in years) of the younger among the new persons is:

 

A) 58 B) 53
C) 50 D) 62
 
Answer & Explanation Answer: B) 53

Explanation:
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1 363
Q:

The average of a number and its reciprocal is 4. The average of its cube and its reciprocal is equal to:

 

A) 256 B) 142
C) 288 D) 244
 
Answer & Explanation Answer: D) 244

Explanation:
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3 482
Q:

The average of the first 1234 ............ numbers is equal to 1234. Fill in the blank.

 

A) odd B) even
C) prime D) natural
 
Answer & Explanation Answer: A) odd

Explanation:
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2 11367
Q:

The average of first 101 ............ numbers is equal to 102.

 

A) even B) natural
C) perfect square D) odd
 
Answer & Explanation Answer: A) even

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0 10532
Q:

The average of 1088 real numbers is zero. At most how many of them can be negative?

 

A) 100 B) 88
C) 544 D) 1087
 
Answer & Explanation Answer: D) 1087

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1 917