⟩ Find the next number in the series 3, 4, 6, 9, 13,?
18....
procedure...
3,4,6,9,13,......
steps: diffrence between 1st and 2nd no = 1
diffrence between 1st and 2nd no = 2
diffrence between 1st and 2nd no = 3 and so on....
diffrence between 5th no and 4th no = 5
ie; X - 13 = 5
X = 18