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easyMCQStaff Selection Commission2026Quantitative Aptitude
1 mark

What is the average of the first 10 prime numbers?

  1. A
    13.9
  2. B
    12.1
  3. C
    12.9
  4. D
    13.1

Solution & Step-by-step Explanation

The first 10 prime numbers are:
2, 3, 5, 7, 11, 13, 17, 19, 23, 29

Sum of these 10 prime numbers:

Sum=2+3+5+7+11+13+17+19+23+29=129
Average of the first 10 prime numbers:

Average=
10
Sum

=
10
129

=12.9

Practice this question

Try it yourself before checking the explanation above.

What is the average of the first 10 prime numbers?
A
13.9
B
12.1
C
12.9
D
13.1

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