Question

If a principal amount Rs. 560 in 3 years and Rs. 600 in 5 years at the same rate of simple interest in percent per annum. Find the principal and the rate of simple interest in percent per annum.​

Answer 1

Answer:

Step-by-step explanation:

Interest in 3years = Rs . 560

Interest in 5 years = Rs. 600

Interest in 2 years = 600 - 560 = Rs.

40

Interest in 1 year = 40 / 2 = Rs. 20

So interest in 3 years = 20 * 3 = Rs.

60

Principal = = 560 - 60 = Rs. 500

SI = PNR / 100

20 = 500 * 1 * R / 100

R = 4%

Answer 2

Answer:

R = 4% is the correct answer.