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What will be the ratio of simple interest earned by certain amount at the same rate of interest for 6 years and that for 9 years ?

Correct answer: C. 2 : 3

  • A. 1 : 3
  • B. 1 : 4
  • C. 2 : 3
  • D. Data inadequate

Explanation

For the same principal and rate, simple interest is directly proportional to time because SI = P x r x t. Therefore, the ratio for 6 years to that for 9 years is 6 years : 9 years = 2 : 3. Option d, data inadequate, is incorrect because the principal and rate cancel in the ratio.

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