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Kabir paid Rs. 9600 as interest on a loan he took 5 years ago at 16% rate of simple interest. What was the amount he took as loan?

  • A.16400
  • B.12000
  • C.12500
  • D.18000

Answer: B

\[ \text{SI} = \frac{P \times R \times T}{100} \]

\[ 9600 = \frac{P \times 16 \times 5}{100} = 0.8P \]

\[ P = \frac{9600}{0.8} = \text{Rs. } 12{,}000 \]

Over five years at 16% the interest comes to 80% of the loan, which is why the principal is only a little above the interest itself.

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