Find the average of first 20 multiples of 7? Options: A . &nbsp70.4 B . &nbsp72.6 C . &nbsp73.5 D . &nbsp75.7

Find the average of f

Question

Find the average of first 20 multiples of 7?

Options:

A . 70.4

B . 72.6

C . 73.5

D . 75.7

Answer: Option C

Required average =7(1+2+3+....+20)/20â†”(7*20*21)/(20*2)â†”(147/2)=73.5.

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