Question

a principal amount at 5% early interest rate after 3 years earned Rs 1200 as a simple interest should the rate of interest and duration remind the same how much will be the compound interest be on the principal​

Answer 1

Principal= 1200

Rate= 5%

Time= 3years.

S.I= P×R×T/100

= 1200×5×3/100

= ₹180.

For Compound interest

= amount=1200(1+5/100)

A.T.Q

it's time is 3 years

then we take (1+5/100) 3 times.

L.C.M =105/100

1200×105/100= 1260

C.I= Amount-Principal

=1260-1200=60

=₹60.