Question

At what percent on simple interst particular sum
of Rs. 4000 amount to 5000 in 4 years ?​

Answer 1

Answer:

6.25%

Step-by-step explanation:

Given :

Principal = Rs. 4000

Time Period = 4 years

Amount = Rs. 5000

To Find:

Rate of interest

Formula Used:

$simple \: interest \: = \frac{pnr}{100}$

where p is principal, n is time period and r is rate of interest

$simple \: interest \: = amount - principal$

Solution:

Simple interest = 5000 - 4000 = 1000

$1000 = \frac{4000 \times 4 \times r}{100}$

$r = 6.25\%$

Answer:

Rate of interest = 6.25%