Question

Please solve no 11 .​

Answer 1

Principal = ₹4,000

CI = ₹ 1,324

Amount = ₹(4,000 + 1,324)

= ₹ 5324

P(1 + R/100)raised to the power n = ₹ 5,324

4,000×(1 + R/100)^3 = 5,324

(1 + R/100)^3 = 5324/4000

(1 + R/100)^3 = 1331/1000

(1 + R/100)^3 = (11/10)^3

1 + R/100 = 11/10

R/100 = 11/10 - 1

R/100 = 1/10

R = 1/10×100

= 10%

Ans: 10%