SSC CGL 17 Aug 2017 Shift 2 Paper

Question : 56 of 100

Marks: +1, -0

What is the average of all numbers between 11 and and 80, which are divisible by 6 ?

Solution:

Required average =

{12 + 18 + 24 + 30 + 36 + 42+ 48 + 54 + 60 + 66 +72 + 78}/12

= {540}/{12}=45

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