Question

if a sum of money at simple interest become 4 times in 5 years then in how
many years will it become 10 times?​

Answer 1

Answer:

If.the money becomes 4 times in

5 yrs. Int.is 3p

so, the rate R=100xI / PN=100x3P/Px5=60%

To find the .yr it becomes l0 times

N=100xI/PR=100x9P/PX60. = 15 yrs. Ans

Here Int: is 9P