Question

The compound interest on a certain sum in 6 years is ₹4000 and compound interest of same sum in 12 years become ₹9600. Then find the sum?

Answer 1

Answer:

Question

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A certain sum of money placed on compound interest amounts to Rs. 4000 in 3 years and Rs. 5000 in 4 years. Calculate the rate of interest.

Step-by-step explanation:

solution

Correct option is

A

25

Sum of money → II year Rs. 4000 → III year Rs. 5000

There is increase of Rs. 1000 in 1 year due to interest

1000=

100

4000×R×1

∴R=25% per annum.

[S.I.=

100

P.R.T ]