Arithmetichard · Past Paper
A sum of money triples itself in 15 years at simple interest. In how many years will it become 5 times itself?
A20 years
B25 years
C30 years
D35 years
✓ Correct Answer: C — 30 years
Triples means SI = 2P in 15 yrs. 5 times means SI = 4P. 2P in 15, so 4P in 30 years.
Share this question
More from Arithmetic
- A student needs 32% marks to pass. He gets 100 marks and fails by 28 marks. What are the total marks?
- A man invests Rs 5000 for 3 years at 10% per annum compound interest. Calculate the interest for the third year only.
- Which of the following is equivalent to 75%?
- A sum of money lent at SI amounts to Rs. 720 in 2 years and Rs. 1020 in 7 years. Find the rate.
- The ratio of zinc and copper in brass is 13:7. How much zinc is there in 100 kg of brass?