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1, 9, 125, 49, 729, 121, 2147
(1) 2147
(2) 729
(3) 125
(4) 1
(5) None of these

1 Answer

Best answer
1 1 vote

1, 9, 125, 49, 729, 121, 2147

May be this question is to identify the wrong number in the series...

This is an alternate series of ^3 and ^2

1             :               1^3

9             :               3^2

125         :                5^3

49           :                7^2

729         :                9^3

121         :               11^2

2197       :               13^3

So, the wrong number is:  2147

Option:  1

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