SSC CHSL 2022 PYQ — Question 56

SSC CHSL - 31 May 2022 - Shift 3 • Quantitative Aptitude • Q56

The average of the first 43 natural numbers is:

Show answer & explanation

Correct answer: D

Explanation

The correct answer is Option 4 i.e. 22.

We know that,

The sum of numbers = Average × Number of terms

The sum of first n natural numbers = ½ × n(n + 1)

Average of n natural numbers = ½ × (n + 1)

According to the given question,

Average of first 43 numbers = ½ × (43 + 1) = ½ × 44 = 22

Hence, the required answer is 22.