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SSC Selection Post 2024 PYQ — Question 61

SSC Selection Post - Higher Secondary Level - 21 June 2024 - Shift 2 • Quantitative Aptitude • Q61

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What is the average of the first 10 prime numbers?

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Correct answer: C

Explanation

The correct answer is Option 3 i.e. 12.9.

First 10 prime numbers: 2, 3, 5, 7, 11, 13, 17, 19, 23, 29

Average = 2+3+5+7+11+13+17+19+23+2910{2+3+5+7+11+13+17+19+23+29}\over 10

⇒ 12910129\over10 = 12.9