Question 43

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

2, 8, 15, 24, 36, 52, ?

Solution

Given series is 2, 8, 15, 24, 36, 52, ?

The logic here is difference of differences of the numbers are consecutive natural numbers as shown below

The next natural number will be 5 and the difference between required number and 52 should be 21.

$$\therefore\ $$Required number = 52 + 21 = 73

Hence, the correct answer is Option B

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