Question 33

Select the number that can replace the question mark (?) in the following series.

1, 2, 4, 7, 13, 24, 44, ?

Solution

The logic here is

1 + 2 + 4 = 7

2 + 4 + 7 = 13

4 + 7 + 13 = 24

7 + 13 + 24 = 44

Required number in the series is equal to the sum of the previous three numbers

$$\therefore\ $$Required number = 13 + 24 + 44 = 81

Hence, the correct answer is Option B

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