Question

if rupees 8000 become rupees 8800 after 2 years at a certain rate of interest find the rate of interest​

Answer 1

Assuming that it is simple interest,

Increase of amount = 800 in 2 years

So, increase in one year = 400

Let the rate of interest be x % per annum

x% of 8000 = 400

$400 = \frac{x}{100}8000$

$80x = 400$

$x = 5$

Hence rate is 5% per year

HOPE THIS HELPS!!

Answer 2

Answer:

Step-by-step explanation:

Let the rate of interest be y % per annum

y% of 8000 = 400

400 = \frac{y}{100}8000

80x = 400

x = 5

Hence rate is 5% per year