Multiple choice

The simple interest on Rs. 12000 in 3 years at the rate of x% per annum equals to the simple interest on Rs. 15000 at the rate of 12% per annum in 2 years. The value of x is - 12000 रू. पर x% प्रतिवर्ष साधारण ब्याज की दर से 3 वर्षो का साधारण ब्याज, 15000 रू. पर 12% प्रति वर्ष साधारण ब्याज की दर से 2 वर्षो के साधारण ब्याज के बराबर है। x का मान क्या है?

  1. 6%

  2. 8%

  3. 9%

  4. 10%
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Setting the simple interests equal: 12000×x×3 = 15000×12×2. This gives 36000x = 360000, so x = 10. The simple interest on Rs. 12000 at 10% for 3 years (SI = 12000×10×3/100 = Rs. 3600) equals the simple interest on Rs. 15000 at 12% for 2 years (SI = 15000×12×2/100 = Rs. 3600). Option D is correct.

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