Multiple choice

A certain sum of money triples itself in 8 years at simple interest. In how many years it will be eight times? / साधारण ब्याज पर 8 वर्षों में धन का एक निश्चित योग तीन गुना हो जाता है। कितने वर्षों में यह आठ गुना होगा?

  1. 16

  2. 24

  3. 27

  4. 28

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

If sum triples in 8 years, it gains 200% interest in 8 years. Simple interest rate = 200%/8 = 25% per annum. To become 8 times, sum needs 700% interest. Time required = 700%/25% = 28 years. Option D is correct. Options A, B, and C are incorrect calculations.