Question

Which of the following numbers will replace the question mark (?) in the given series?

42, 41, 45, 36, 52, 27, ?

A 63 Correct Answer Incorrect Answer
B 81 Correct Answer Incorrect Answer
C 91 Correct Answer Incorrect Answer
D 49 Correct Answer Incorrect Answer

Solution

42 – 1² = 41 41 + 2² = 45 45 - 3² = 36 36 + 4² = 52 52 - 5² = 27 27 + 6² = 63

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