Question

Vaibhav is an enthusiastic sports boy . While practising long jump , he managed 90cm on the first day . Second day onwards he managed to jump 2cm longer than the previous day and so on . On sixth day , how long did he jump?​

Answer 1

you can use arithmetic progression,

here a = 90 & d = 2& n=6

on sixth day , length = a+5d = 90 + 5×2 = 100cm