Question

find simple interest p=1050 ,r=4% t=5year 3 nonth (yearly)

Answer 1

use formula prn/100. answer will be 220.5

Answer 2

Formula for SI is ptr/100 where

Given p=1050 ,r=4% t=5year 3 months.

In formula t is time in years hence we have to convert 5years 3months into years.

On converting 3months into year we get (3/12) which is 1/4 year. Hence here time is 5+(1/4) i.e., 21/4 years. On substituting all these values in formula we get SI=1050*(21/4)*4/100 which is equal to 220.5