Question

a sum of money become its twice in 4 years at simple interest at the same interest rate in how much year it will be 5 times​

Answer 1

Let the principle be 100.

Then amount will be 200.

Interest= 100

Time = 4 yrs

R=?

I=PRT/100

100=100×R×4/100

100×100/100×4=R

100/4=R

NOW SUM SHOULD BE 5 TIMES MEANS 500

I=PRT/100

500=100×100/4×T/100

500×4/100=T

20= T

IN 20 YEARS SUM WILL BECOME 5 TIMES OF PRINCIPLE.

mark as brainliest

Answer 2

Answer:

           Hey mate here is your answer

      Hope it help you

InterestAmt.=(Principal∗Rate∗time)/100

applying your condition

3∗Principal=(Principal∗Rate∗time)/100

3=(Rate∗time)/100

300=12.5∗time

Time=300/12.5

Time=24

             plz mark as brainlist