Multiple choice

The difference between the simple interest and the compound interest on a certain sum of money for 3 years at 10% per annum is Rs.15 and 50 paise. The sum is किसी धनराशि पर 10% प्रति वर्ष की ब्याज दर से 3 वर्षों में साधारण ब्याज और चक्रवृद्धि ब्याज का अन्तर 15 रू. 50 पैसे है, तो धनराशि क्या है?

  1. Rs/रू.5000

  2. Rs/रू.550

  3. Rs./रू.500

  4. Rs./रू.1500
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Difference between CI and SI for 3 years at rate r% is P × (r/100)² × (3 + r/100). Given r=10%, difference=15.50. Substituting: 15.50 = P × (1/10)² × (3.10) = P × 0.031. Solving: P = 15.50/0.031 = 500.

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