Question

The simple interest on a sum of money at the end of 4 years is 3/5 of the sum. Find the rate of interest.​

Answer 1

Answer:

15%

Step-by-step explanation:

Let the sum of money be Rs. x

Given: principal(p)=x

Interest(I)= 3/5*x

Time(t) = 4

rate of interest = I * 100/ p * t

=

$\frac{ \frac{3}{5} \times x \times 100}{x \times 4}$

$\frac{ \frac{3}{5} \times 100}{4}$

$\frac{3}{5} \times 25$

$3 \times 5$

$15 \: \: percent$

Answer 2

Answer:

15%Rate of interest

Step-by-step explanation:

rate = si×100/p×t

3×x×100/x4

3/5×1000/4

3/5×25=15%