Question

what time will a sum of money double itself at 15% per annum ​

Answer 1

Answer:

6.66 years

Step-by-step explanation:

For simple Interest,

(n-1)/Rate ×100

=(2-1)/15×100

=1/15×100

=6.66 years

Answer 2

Answer:

6.67

Step-by-step explanation:

let the system be simple interest system

so far

the interest i = art = 0.15at = a ( because it is doubled , so the interest = amount a)

0.15at = a     ,    0.15t = 1    ,  t = 1/0.15  = 6.67 years