7, 65, 215, 513, 999, .....

888

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1000

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1001

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1729

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Solution

The correct option is B 1729
The rule is $2^{3} - 1$ , $4^{3} + 1$ , $6^{3} - 1$ , $8^{3} + 1$ , $10^{3} - 1$ , $12^{3} + 1$ etc Next number is $12^{3} + 1$ = 1728 + 1 = 1729

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Similar questions

999 \frac{1}{7} + 999 \frac{2}{7} + 999 \frac{3}{7} + 999 \frac{4}{7} + 999 \frac{5}{7} + 999 \frac{6}{7} =

999 \frac{1}{7} + 999 \frac{2}{7} + 999 \frac{3}{7} + 999 \frac{4}{7} + 999 \frac{5}{7} + 999 \frac{6}{7}

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