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Find the wrong term in the following series. 3, 17, 81, 315, 930, 1833

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Find the wrong term in the following series.

3, 17, 81, 315, 930, 1833
1). 315
2). 930
3). 17
4). 3


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1 answers

3 vote
Answered by on | Votes 3 |

The relation among given numbers are:

3 × 6 - 12 = 18 - 1 = 17;

17 × 5 - 22 = 85 - 4 = 81;

81 × 4 - 32 = 324 - 9 = 315;

315 × 3 - 42 = 945 - 16 = 929;

929 × 2 - 52 = 1858 - 25 = 1833;

Hence, “930” is the wrong term in the series.

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