Multiple choice

The difference between simple interest and compound interest on a sum of money at 5% p.a. for 2 years is Rs. 100 the sum of money must be दो वर्षों के लिए साधारण ब्याज और चक्रवृद्धि ब्याज का अन्तर 5% ब्याज दर से रू. 100 है। तो आरम्भिक धनराशि ज्ञात कीजिए।

  1. Rs./रू. 35000

  2. Rs./रू. 41000

  3. Rs./रू. 40000

  4. Rs./रू. 45000
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

For 2 years at 5%, CI - SI = P × (R/100)². Here: 100 = P × (5/100)² = P × 0.0025, so P = 100/0.0025 = Rs. 40,000. This direct formula applies when the difference between CI and SI is asked for exactly 2 years.

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