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What sum of money will produce Rs.70 as simple interest in 4 years at 3 1/2 percent?

  • A.Rs.525
  • B.Rs.500
  • C.Rs.550
  • D.Rs.555

Answer: B

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

\[ 70 = \frac{P \times 3.5 \times 4}{100} = 0.14P \]

\[ P = \frac{70}{0.14} = \text{Rs. } 500 \]

Over four years at 3.5% the interest comes to 14% of the sum.

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