SSC CGL Model Paper 7

Direction (12-14): In the following question, select themissing number from the given series.

Question : 12 of 100

Marks: +1, -0

127, 63 ,31 ,15, 7, ?

Solution:

{127-1}/2=63

{63-1}/2=31⇒{31-1}/2=15

{15-1}/2=7⇒{7-1}/2=3

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