Multiple choice

If the difference of compound interest and simple interest at 12.5% on certain sum of money for third year Rs. 765. Find the sum of money. यदि किसी निश्चित धन पर 12.5% की दर से तीसरे वर्ष के चक्रवृद्धि ब्याज और साधारण ब्याज का अंतर 765 रूपये है, तो मूलधन ज्ञात कीजिये।

  1. 24040 Rs./रू.

  2. 25040 Rs./रू.

  3. 23040 Rs./रू.

  4. 28080 Rs./रू.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The difference between compound interest and simple interest for the 3rd year is given by P × (r/100)^2 × (2 + r/100). Substituting P = 23040 and r = 12.5%: 23040 × (0.125)^2 × 2.125 = 23040 × 0.015625 × 2.125 = 765. Option C matches this calculation.

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