Question

a sum of money given at 10% per annum simple interest will be coubled in​

Answer 1

simple interest =prt/100

Answer 2

Let some of money be RS.100

P=Rs.100

A=Rs.200

I=A-P

=200-100=100

R=10%

T=100*I/P*R

=100*100/100*10

=10Years

Hope it's helpful.......✌