Question

Nitin saves 0.45 part of his salary every month. if he earns 5250 per month, how long will he take to save 18900

Answer 1

hey mate
here is ur ans

u have know about that it is q of arthemetic progression

so given that
d= 0.45
a = 5250
Sn= 18900
n= ?

Sn= n/2(2a+(n-1)d)
18900=n/2 (2(5250)+(n-1) 0.45)
on solve it so we get the value of n

hope it help u