Question

Q2
Find the missing term in the following
series.
1, 2, 6, 15, ?, 56
a)31
b)40
c)37
d)45​

Answer 1

31 is ans

Difference in sequence increase with previous + odd number 1+1=2 2+1+3=6 6+4+5=15 15+9+7=31 Hence 31+16+9=56.