Question

9. In what time will a sum of money double itself at 5% per annum?​

Answer 1

Answer:

20 years

Step-by-step explanation:

As to double a amount it is required to make 100 to 200% so there is increase 5% per year

so for it to make 100% will be

100/5

=20 years

Answer 2

Answer:

20 years

Step-by-step explanation:

if there is 5% per year, then to get a 100% divide 100 by 5 (100/5=20)

Therefore, ans: 20 yrs