Multiple choice

In what time will Rs. 8,000 at 3% simple interest per annum produce the same amount as Rs.6,000 does in 5 years at 4% simple interest ? रू. 8,000 पर कितने समय में 3% साधारण ब्याज प्रति वर्ष की दर से उतना ही मिश्रधन प्राप्त होगा जितना कि रू. 6,000 पर 4% प्रति वर्ष साधारण ब्याज की दर पर 5 वर्ष में प्राप्त होता है?

  1. 3 years/वर्ष

  2. 4 years/वर्ष

  3. 5 years/वर्ष

  4. 6 years/वर्ष

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

For Rs. 6000 at 4% for 5 years: SI = 6000 × 0.04 × 5 = Rs. 1200. Amount = 7200. For Rs. 8000 at 3%, we need same interest. 8000 × 0.03 × T = 1200. T = 1200/(240) = 5 years. Set the interest amounts equal and solve for time.