RRB NTPC 18 January 2017 Paper

Question : 118 of 120

Marks: +1, -0

What will be the next number in the series?
6, 25, 62, 123, 214

Solution:

(1)

2 ^ { 3 - 2 } = 6,3 ^ { 3 } - 2 = 25

4 ^ { 3 } - 2 = 62,5 ^ { 3 } - 2 = 123

6 ^ { 3 } - 2 = 214

So, the next term will be

7 ^ { 3 } - 2 = 343 - 2 = 341

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