SSC CHSL 2022 PYQ — Question 53

SSC CHSL - 30 May 2022 - Shift 2 • Quantitative Aptitude • Q53

The average of the natural numbers divisible by 5 from the integers −10 to 35 is:

Show answer & explanation

Correct answer: D

Explanation

The correct answer is Option 4 i.e. 20.

We know that,

Average = Sum of observations/Number of observations

According to the given question,

The natural numbers between integers -10 to 35 that are divisible by 5 are 5, 10, 15, 20, 25, 30, 35.

Sum of the terms = (5 + 10 + 15 + 20 + 25 + 30 + 35) = 140

Therefore,

Average = 1407140 \over 7 = 20

Hence, the required average is 20