Multiple choice

A principal of Rs.10,000 will amount to (in rupees) after 2 years compounded annually, the rate of interest being 10% per annum during the first year 12% per annum during the second year. एक रु.10000 की धनराशि पर 2 वर्षों में चक्रवृद्धि ब्याज की दर से, यदि ब्याज की दर प्रथम वर्ष 10% वार्षिक और दूसरे वर्ष 12% वार्षिक ब्याज की दर से मिश्रधन (रु. में) होगा ।

  1. Rs./रु.12000

  2. Rs./रु.12320

  3. Rs./रु.12500

  4. Rs./रु.11320
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B Correct answer
Explanation

First year amount = 10000 × 1.10 = 11000. Second year amount = 11000 × 1.12 = 12320. Alternatively: 10000 × (1 + 10/100) × (1 + 12/100) = 10000 × 1.1 × 1.12 = 12320.

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