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SSC GD 2023 PYQ — Question 53

SSC GD Constable (English) - 23 Jan 2023 - Shift 4 • Quantitative Aptitude • Q53

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Find the average of the first 9 prime numbers.

Show answer & explanation

Correct answer: C

Explanation

The correct answer is Option 3 i.e. 111911\frac{1}{9} .

First 9 prime numbers = 2, 3, 5, 7, 11, 13, 17, 19, 23

We know that,

Average = Sum of observations/Number of observations

Average = (2 + 3 + 5 + 7 + 11 + 13 + 17 + 19 + 23)/9

⇒ 100/9 = 111911\frac{1}{9}