Multiple choice

The compound interest on Rs.30000 at 7% per annum for a certain time is Rs.4347. Then the time is - 30000 रू. पर एक निश्चित समय के लिये 7% की दर से चक्रवृद्धि ब्याज 4347 रू. है तो समय है-

  1. 2 years/वर्ष

  2. 2.5 years/वर्ष

  3. 3 years/वर्ष

  4. 4 years/वर्ष
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

CI = P[(1+r/100)^t - 1], so 4347 = 30000[(1.07)^t - 1]. This gives (1.07)^t = 1 + 4347/30000 = 1.1449. Checking: 1.07² = 1.1449, therefore t=2 years.

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