Multiple choice

A sum of Rs 3500 is divided into two parts such that the interests on the first part at 8% simple interest per annum and that on the other part at 6% simple interest per annum are equal. Find the interest on each part?

  1. Rs. 600

  2. Rs. 100

  3. Rs. 80

  4. Rs. 120

  5. None of these
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Let the first part be x at 8% and second part be (3500-x) at 6%. For equal interests: 0.08x = 0.06(3500-x), which gives x = 1500. So first part is Rs 1500 at 8%, second part is Rs 2000 at 6%. Interest on each = 1500 × 0.08 = Rs 120 per year. The key is setting up the equation from the equal interest condition.

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