SSC CHSL 2025 PYQ — Question 74

SSC CHSL - 28 Nov 2025 - Shift 1 • Quantitative Aptitude • Q74

The average of 5 consecutive odd natural numbers is 37. Previous 5 consecutive odd natural numbers to these 5 odd natural numbers are also included. What will be the average of newly added numbers?

Show answer & explanation

Correct answer: C

Explanation

Given:

Average of 5 consecutive odd numbers = 37

In a series of consecutive numbers, the average = the middle number

The 5 consecutive odd numbers:

33, 35, 37, 39, 41

The 5 consecutive odd numbers preceding these:

23, 25, 27, 29, 31

Average of the newly added numbers:

= (23 + 25 + 27 + 29 + 31) / 5

= 135 / 5

= 27

Average of the newly added numbers = 27