Question

At what rate per annum will the simple interest on a certain sum of money be one-fifth of the amount in 10 years.
(question of simple interest)
(please don't just write the answer show process please)

Answer 1

Answer:

4%

Step-by-step explanation:

SI= (2/5)P, t=10, r=?

=> 100/PTR = (2/5)P

=> (10×r)/100 = 2/5

=> r= 20/5

=> 4%

any problem occurs while understanding the process refer to the attachment.