Question

The ninth term of the sequence 0,3,8,15,24,35 ...... is (explain each step pls)

Answer 1

The ninth term of the sequence 0,3,8,15,24,35..... is 80
we are leaving the numbers with a gap of even number (digits of multiplication table of only 2)
like this:
0+2=3
then leaving 4 numbers then 6..8..10..12..14..16 and so on