Q. The wrong term in the sequence 7, 28, 63, 124, 215, 342, 511 is :
Answer: 28
Notes: The given sequence is based on the following pattern : $latex 2^{3}-1 = 7$ $latex 3^{3}-1 = \underline{26} , 28(not)$ $latex 4^{3}-1 = 63$ $latex 5^{3}-1 = 125-1 = 124$ $latex 6^{3}-1 = 216-1 = 215$ and so on. ∴ The wrong term is = 28.

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