Question

if a sum of money at simple interest Doubles in 5 years, it will become 4 times in​

Answer 1

Answer:

Time= 15 years

Step-by-step explanation:

Given,

n1=2times

T1=5 years

n2=4times

T2=?

Short Method

Formula

(n1- 1)/ T1= (n2-1)/ T2

2-1/5= 4-1/T2

1/5= 3/ T2

T2= 5×3

=15 years

I hope it helps you

Mark me as brainliest