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SSC GD 2019 PYQ — Question 58

SSC GD Constable (English) - 3 March 2019 Shift 1 • Quantitative Aptitude • Q58

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Average of first eight multiples of 8 is

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Correct answer: A

Explanation

The correct answer is option 1 i.e. 36

Trick = (When difference of terms are same then average = (first term + last term) / 2)

First term = 8 × 1 = 8

Last term = 8 × 8 = 64

Average = (8 + 64)/2

72/2 = 36