Question

8. In how many years does a sum of money double at the rate of 5% per anum simple
interest?
1. 5 years
3. 15 years
2. 10 years
4. 20 years​

Answer 1

Answer:

20years is the right answer

Step-by-step explanation:

for this question type alone the formula is NR=100

where N- year R rate of interest. substitute if doubles =100 ; triples=200; 4times =300; and so on