Question

What Principal will yield an interest of Rs 81 in 9 years
at 4% per annum?

Answer 1

Answer:

Given, Principal = Rs. 450, Rate of interest =4.5% and simple interest = Rs. 81

Simple interest =

100

PRT

⇒81=

100

450×4.5×T

⇒81×100=450×4.5×T

⇒T=4 years