Question

Find the number missing at question mark:10,11,23,39,64,?,149

Answer 1

$\huge\mathfark{ANSWER}$

Answer 2

I think the missing no. should be 105

• let we find the common difference of 10 11 23 39 64

i.e. 1 12 16 25

• now finding the difference of 1 12 16 25

i.e. 11 4 9

• now finding the difference of 11 4 9

we get 7 5

• now lastly finding the difference of 7 5

i.e. 2

• so now adding the last no. of each difference series

we get 2 + 5 + 9 + 25 = 41

• now, 64 + 41= 105

So the actual series become

10 11 23 39 64 105 149

THANKS:)