Instructions
What will come in place of the question mark ?) in the following number series ?
Solution
$$18 + (1^{3}-1) = 18 + 0 = 18$$
$$18 + (2^{3}-2) = 18 + 6 = 24$$
$$24 + (3^{3}-3) = 24 + 24 = 48$$
$$48 + (4^{3} - 4) = 48 + 60 = 108$$
$$108 + (5^{3} - 5) = 108 + 120 = 228$$
Hence, option B is the right answer.
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