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Select the number that can replace the question mark (?) in the following series.1, 3, 6, 11, 18, 29, 42, ?
Question

Select the number that can replace the question mark (?) in the following series.
1, 3, 6, 11, 18, 29, 42, ?

A.

57

B.

63

C.

59

D.

55

Correct option is C

Given: 1, 3, 6, 11, 18, 29, 42, ?
Logic: The numbers increase by consecutive prime numbers (+2, +3, +5, +7, +11, +13, +17)
1 + 2 = 3
3 + 3 = 6
6 + 5 = 11
11 +7 = 18
18 + 11 = 29
29 + 13 = 42
Similarly;
42 + 17 = 59
Thus, the correct option is (c) 59.

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