SSC Steno Grade C and D 13 Sep 2017 Shift 1 Paper

Question : 3 of 199

Marks: +1, -0

In the following question, select the missing number from the given series : 12, 18, 27, 40.5, ?

Solution:

(3)

12 + 4 + {4 }/2 = 18

18 + 6 + {6 }/2 = 27

27 + 9 +{ 9}/ 2 = 40.5

40.5 + 13.5 +{ 13 .5 }/2 = 60.75

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