Multiple choice

What is the difference between simple interest and compound interest on a sum of Rs. 9000 at 20% per annum for 3 years 9000 रू. की धनराशि पर 3 वर्ष में 20% वार्षिक ब्याज की दर से साधारण ब्याज और चक्रवृद्धि ब्याज में क्या अन्तर है?

  1. 1125

  2. 1251

  3. 1215

  4. 1152

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Simple Interest = P × R × T / 100 = 9000 × 20 × 3 / 100 = Rs. 5400. Compound Interest = P[(1 + R/100)^T - 1] = 9000[(1.2)³ - 1] = 9000(1.728 - 1) = 9000(0.728) = Rs. 6552. Difference = CI - SI = 6552 - 5400 = Rs. 1152. This matches option D.