Question 34

In the following question, select the missing number from the given series.

1, 3, 6, 10, 15, ?

Solution

Consecutive natural numbers are added.

1 + 2 = 3

3 + 3 = 6

6 + 4 = 10

10 + 5 = 15

15 + 6 = 21

=> Ans - (B)

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