567
Q:

# A grocer has a sale of Rs 6435, Rs. 6927, Rs. 6855, Rs. 7230 and Rs. 6562 for 5 consecutive months. How much sale must he have in the sixth month so that he gets an average sale of Rs, 6500 ?

 A) 4991 B) 5467 C) 5987 D) 6453

Explanation:

Total sale for 5 months = Rs. (6435 + 6927 + 6855 + 7230 + 6562) = Rs. 34009.

Required sale = Rs.[(6500 x 6) - 34009]

= Rs. (39000 - 34009)

= Rs.  4991.

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

Explanation:

0 46
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

Explanation:

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

Explanation:

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

Explanation:

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

Explanation:

3 489
Q:

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

 A) odd B) even C) prime D) natural

Explanation:

2 11375
Q:

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

 A) even B) natural C) perfect square D) odd

Explanation:

0 10538
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