Multiple choice

A sum was put at simple interest at a certain rate for 5 years. Had it been put at 5% higher rate, it would have fetched Rs. 500 more. What is the sum? एक राशि को 5 वर्षों के लिए साधारण ब्याज पर एक निश्चित दर पर रखा गया था। अगर इसे 5% अधिक दर पर लगाया जाता, तो उसे रु 500 अधिक मिलते तो राशि क्या है?

  1. 2700

  2. 2560

  3. 2000

  4. 2400

  5. 1850

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

Let principal = P, rate = r% per year. Simple interest for 5 years = P × r × 5/100. At rate (r+5)%: interest = P × (r+5) × 5/100. Difference: P × 5 × 5/100 = 500. So: P/4 = 500, giving P = 2000. The sum is Rs. 2000.