In each of the following questions , one term is wrong. Find out the wrong term.
5, 27, 61, 122, 213, 340, 509

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122

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509

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213

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Solution

The correct option is A 27
The correct sequence is $2^{3} - 3, 3^{3} - 3, 4^{3} - 3$ etc. So 27 is a wrong term and it should be $3^{3} = 24$

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Similar questions

5, 24, 65, 122, 213, 340

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