Question

at what percent rate per annum simple interest will be three times in 25 years​

Answer 1

Answer:

Si is 3 years I am hundred percent sure

Answer 2

Answer:

Rate per cent=8per cent per annum

Step-by-step explanation:

let the principle be x

Rate per cent =?

Time=25 years

Amount =3x

Amount=Principle+Interest

Interest=Amount _Principle

=3x_x=2x

Interest =2x

Simple interest= ptr/100

2x=x×25×r/100

100×2x=x×25×r

100×2x/x=25r

100×2=25r

200=25r

200/25=r

hence, r=8per cent per annum