7, 11, 7, 13, 9, ?

M4maths Previous Puzzles

11 Aug 2011 what will be next number

7, 11, 7, 13, 9, ?

OPtion

1) 15
2) 6
3) 16
4) 8
5) 9
6) 7
7) 12
8) 13
9) 9
10) 21

Solution

factor of 10 = 5,2 = sum of factors = 7 similarly
11 = 11
12 = 2,2,3 = 7
15 = 5,3 = 8

Correct Option: 4 Best Solution (0)