Multiple choice

A man borrowed Rs. $480$ from his neighbour. He paid it back after $ 5 $ months together with the interest charged at $5\%$ per annum. What amount did he pay back?

  1. Rs. $512$
  2. Rs. $500$
  3. Rs. $490$

  4. None of these
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Principal = 480, Time = 5/12 years, Rate = 5%. Interest = (480 * 5 * 5) / (100 * 12) = 480 * 25 / 1200 = 480 / 48 = 10. Total amount = 480 + 10 = 490.

AI explanation

Using the simple interest formula, the interest is calculated as (480 * 5 * 5/12) / 100. This simplifies to 12000 / 1200, resulting in an interest of Rs 10. The total amount paid back is the principal plus the interest, which is 480 + 10 = Rs 490.

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