- A12.5 years
- B8 years
- C10 years
- D16 years
Step-by-Step Solution
To double, S.I. = . Take , S.I. = 100, years.
Answer: A) 12.5 years
At 8% per annum simple interest, in how many years will a sum of money double itself?
Class 7Simple InterestComparing Quantities
Master this chapter in 30 minutes a day.
Don't just memorise the answer — build a daily practice habit.
Practice 5 Similar Questions Free →All Simple Interest practice questions
More Class 7 Simple Interest practice
A man invested a total of ₹12000 in two parts. He put ₹7000 at 5% per annum and the rest…Two friends each lent ₹6000. The first lent at 5% per annum for 3 years; the second at…A certain sum amounts to ₹4400 in 2 years and to ₹4600 in 3 years at simple interest.…Geeta deposited ₹16000 in a bank at 7.5% per annum. She withdrew the full amount after 4…A sum lent at simple interest grows to ₹6050 in 3 years and ₹7100 in 6 years. Find the…