SSC CHSL 5 Mar 2018 Shift 1 Paper

Section: English Language

Question : 10 of 100

Marks: +1, -0

What is the average of first 7 multiples of 7?

Solution:

First 7 multiples of 7 = 7,14,21,28,35,42,49
⇒ Sum =

7(1 + 2 + 3 + 4 + 5 + 6 + 7) = 7 × 28

⇒ Average =

{7×28} /7 =28

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