Question

Rupees 10,000 becomes rupees 20,000 at simple interest in 8 years.Find the rate percent per annum

Answer 1

Answer:

25/2 %

Step-by-step explanation:

principal =Rs10000

Amount =Rs20000

simple interest =amount -principal

=Rs 20000 - Rs 10000

=Rs 10000

Time = 8 years

rate of interest = P×100/T×S. I

=25/2 %

Answer 2

Answer:

Simple Interest = P x R x T /100

P=Principal Amount

R=Rate Percent Per Annum

T= Time in years

let 10,000 is Principal amount

Simple interest is 20,000

T=8 years

R=?

Now, put values in the formula:

20000 = 10000*R*8/100

20000=R800

R=20000/800

R=2.5% per annum

Step-by-step explanation: