Multiple choice

There is 60% increase in an amount in 6 year at simple interest. What will be the compound interest on Rs.24000 after 3 years at the same rate of interest? साधारण ब्याज पर एक राशि में 6 वर्ष में 60% की वृद्धि हुई है। उसी ब्याज दर पर 3 वर्ष के बाद 24000 रुपये पर चक्रवृद्धि ब्याज क्या होगा?

  1. Rs./रु.4320

  2. Rs./रु.6240

  3. Rs./रु.7944

  4. Rs./रु.12480
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

60% increase in 6 years at SI means rate = 60/6 = 10% per annum. For CI on Rs.24000 for 3 years at 10%: Amount = 24000 × (1.1)^3 = 24000 × 1.331 = Rs.31944. CI = 31944 - 24000 = Rs.7944. The key is converting the SI information to find the rate first.

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