Question

The simple interest on a sum of money for 5 years is one - fourth of the sum. What is the rate of interest per annum. ​

Answer 1

Answer:

let the sum be x, so si =1/4x ,t=5years .now r=si multiply by 100 divided by sum multiply by time.. and finally your answer come 5percent

Answer 2

Answer:

Rs 400

Step-by-step explanation:

Let the principal be Rs. P.

S.L =

100

p×R×T

⇒

4

p

=

100

p×4×R

⇒R=

16

100

=

4

25

% per annum

⇒P=

Rate×Time

SI×100

⇒P=

4

25

×2

(450−p)×100

⇒p=450×8−8P

⇒9P=450×8⇒P=Rs.400