Question

1,6,15,?,45,66,91. Find out the missing number.

Answer 1

Answer:

1,6,15,(...),45,66,91

26

28

29

34

Answer: Option B

Explanation:

Pattern in the series is, +5, +9, .., .., +21, +25

So 4 is getting increased at every term addition.

Missing term in the series will be 15+(9+4)

= 15+13 = 28