Multiple choice

A certain sum of money, invested at compound interest becomes Rs.3000 in 3 years and Rs.6000 in 6 years. Find the amount after 9 years. एक निश्चित धनराशि, चक्रवृद्धि ब्याज पर 3 वर्षों में 3000 रु. हो जाती है और 6 वर्षों में 6000 रु. हो जाती है | 9 वर्ष बाद धनराशि ज्ञात कीजिये |

  1. Rs. /रु.7500

  2. Rs. /रु.9000

  3. Rs. /रु.10000

  4. Rs. /रु.12000
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

In compound interest, if amount doubles every 3 years (3000 to 6000), the pattern continues: after 9 years = 12000. This follows the rule that in compound interest, when amount doubles over equal intervals, each interval doubles the amount. The 3-6 year doubling means 6-9 years also doubles.

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