Question

Please solve the first one

Answer 1

Answer:

I can't able to see the question

Answer 2

The solution is done below for you :

Let the sum be Rs. P and rate of interest r%

According to the question, the interest after 8 years is

I = Rs. 16/25 * P = Rs. 16P/25

We know the formula,

I = Ptr/100, where I = simple interest

P = sum

t = time of investment

r = rate of interest p. a.

This gives,

16P/25 = (P * 8 * r)/100

or, 16P/25 = 8Pr/100

or, r = (16P/25) / (8P/100)

or, r = (16 * P * 100) / (25 * 8 * P)

or, r = 8

∴ the rate percent is 8% p.a. .