1+4+18+43+79+.............. next number of the series will be

M4maths Previous Puzzles

14 May 2012 series

1+4+18+43+79+..............
next number of the series will be

OPtion

1) 102
2) 109
3) 112
4) 116
5) 119
6) 121
7) 123
8) 126
9) 136
10) none of these

Solution

4 - 1 = 3
18 - 4 = 14
43 - 18 = 25
79 - 43 = 36
the difference of all the differences = 11
so next difference = 36+11 = 47
so next number = 79+47 = 126

Correct Option: 8 Best Solution (0)