Haryana Police Constable Model Paper 7

Question : 15 of 101

Marks: +1, -0

What is the arithmetic mean of the first ten composite numbers?

Solution:

Given:
⇒ First ten composite number

= 4, 6, 8, 9, 10, 12, 14, 15, 16, 18.

Formula:

⇒ \Arithmetic \mean ={ \total \sum \of \sample}/ {\number \of \sample}

Calculation:
⇒ Arithmetic mean of first ten composite numbers

= (4 + 6 + 8 + 9 + 10 + 12 + 14 + 15 + 16 + 18)/10

= 112/10 = 11.2

∴ Arithmetic mean of the first ten composite numbers is 11.2

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