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The next term in the following series is : 1 , 3, 7 , 15 , __

A21

B23

C31

D29

Answer:

C. 31


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ശ്രേണിയിലെ അടുത്ത സംഖ്യ കണ്ടെത്തുക 1, 6, 13, 24, 41, ?
5, 8, 11, __, 17, ... ശ്രേണിയിലെ വിട്ട് സംഖ്യ ഏത്?