Multiple choice

At ratio of 8% P.A. the difference of simple interest and compount interest for 2 years is Rs. 20.80, find the principal amount? यदि 8% वार्षिक ब्याज की दर से 2 वर्षो के साधारण ब्याज और चक्रवृधि ब्याज का अन्तर रू 20.80 है, तो मूलधन ज्ञात करे?

  1. 3200

  2. 3250

  3. 3375

  4. 3400
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B Correct answer
Explanation

For 2 years, the difference between compound interest and simple interest is P × (R/100)². Given difference = Rs. 20.80 and R = 8%, we have: 20.80 = P × (8/100)² = P × 64/10000. Therefore P = 20.80 × 10000/64 = 3250.

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