Average (SSC) (Part-2)

Total Questions: 50

1. What is the average of the first 8 multiples of 6 among the natural numbers? [SSC MTS 07/08/2019 (Evening)]

Correct Answer: (c) 27
Solution:

2. The average of a and b is 36. The average of b and c is 42. What is the difference between c and a? [SSC MTS 6/08/2019 (Afternoon)]

Correct Answer: (b) 12
Solution:

3. The average of 1088 real numbers is zero. At most how many of them can be negative? [SSC CHSL 11/07/2019 (Morning)]

Correct Answer: (d) 1087
Solution:

4. The difference between the average of first ten prime numbers and the first ten prime numbers of two digits is: [SSC CHSL 10/07/2019 (Evening)]

Correct Answer: (d) 13.5
Solution:

5. The average of the first 101________numbers is equal to 102. [SSC CHSL 10/07/2019 (Afternoon)]

Correct Answer: (c) even
Solution:

6. The average of the first 1234________numbers is equal to 1234. [SSC CHSL 10/07/2019 (Morning)]

Correct Answer: (a) odd
Solution:Average of n odd numbers is always n.

7. The average of a number and its reciprocal is 4. The average of its cube and cube of its reciprocal is equal to: [SSC CHSL 9/07/2019 (Evening)]

Correct Answer: (d) 244
Solution:

8. 10 years ago, the average age of a family of five members was 38 years. Now, two new members join, whose age difference is 8 years. If the present average age of the family is the same as it was 10 years ago, what is the age (in years) of the new younger member? [SSC CHSL 4/07/2019 (Afternoon)]

Correct Answer: (b) 9
Solution:

9. The average of n number is 36. If each of 75% of the numbers is increased by 6 and each of the remaining numbers is decreased by 9, then the new average of the numbers is: [SSC CHSL 4/07/2019 (Morning)]

Correct Answer: (c) 38.25
Solution:

10. The average weight of the students in a group was 75.4 kg. Later on, four students having weights, 72.9 kg, 73.8 kg, 79.5 kg and 87.4 kg joined the group. As a result, the average weight of all the students in the group increased by 0.24 kg. What was the number of students in the group, initially ? [SSC CHSL 3/07/2019 (Morning)]

Correct Answer: (a) 46
Solution: