Question

In how many years the interest on rs 1000 at 5% is equal to the interest on rs 500 at 10% in 5 years? pls ans fast i have to prepare for my exam tomorrow.

Answer 1

let the time be. X years
then ...
1000×5/100×X=500×10/100×5
50X=250
X=250/50
X=5 years

Answer 2

let the no of years is n ...

so PTR/100= ptr/100 by question

so 1000*n*5/100=500*5*10/100

5000n=25000

n=5....the ans is 5 yrs