NIMCET 2009 Question Paper with solutions

Question : 54 of 120

Marks: +1, -0

What will come in place of the question mark (?) in the following series? 12 22 69 272 1365

Solution:

22=12 × 2-2

69=22 × 3+3

272=69 × 4-4

1365=272 × 5+5

?=1365 × 6-6=8184

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