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In the following number series, two numbers have been put within brackets. Select the most appropriate option for these numbers in relation to their inclusion in the series.
0, 7, 26, (65), 124, 215, (344), 511
Given series 0, 7, 26, (65), 124, 215, (344), 511
the above is pattern followed
$$ 1^3 -1 , 2^3-1, 3^3-1. (4^3-1), 5^3-1, 6^3-1, (7^3-1) , 8^3-1 $$
$$\Rightarrow 0, 7,26, (63) 124, 215, (342) 515 $$
then the Braacket number is incorrect Both (i.e not follow the pattern )
therefore (C) Both the Bracket number are incorrect. Ans
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