2,6,15,31,56 insert the missing number?
Answers
Answered by
0
ist difference 1 4 9 16 25 36
2nd difference 3 5 7 9 11...........
2=1+1
6=2+4
15=6+9
31=15+16
56=31+25
2nd difference 3 5 7 9 11...........
2=1+1
6=2+4
15=6+9
31=15+16
56=31+25
Similar questions