CAT Exam

1,3,9,31,129,?

Read Solution (Total 1)

651
1x1+2=3
3x2+3=9
9x3+4=31
31x4+5=129
129x5+6=651
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CAT Other Question

If total income of A,B,C is 1,44,000 and they spent 80% , 85% and 75% respectively from their income then ratio of their savings are 8:9:20 . find income of C . "1,3,9,31,129,?"