Question

In how many year will a sum become double
of itself at 10% þ.e. by simple interest?​

Answer 1

Answer:

let the sum of money be p be =x

r = 10%

let the amount be 2x

si = a-p

2x-x=

x

now

t =100× si

p×r

= 100× x

x× 10

= 10 years