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SSC MTS 2019 PYQ — Question 53

SSC MTS Previous Year - 07 August 2019 - Shift 1 • Quantitative Aptitude • Q53

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What is the average of all the multiples of 6 from 20 to 80?

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Correct answer: A

Explanation

The correct answer is Option 1 i.e 51

Understanding

Application

Multiples of 6 from 20 to 80:

24, 30, 36, 42, 48, 54, 60, 66, 72, 78

Average = [24 + 30 +  36 + 42 + 48 + 54 + 60 + 66 + 72 + 78]/10

= 510/10

= 51