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Multiple choice

The interest on a certain principal P at 12% S.I. for 4 years is equal to the amount on a principal Q at 11% S.I. for 4 years. Then,

  1. 12P = 11Q

  2. 11P = 12Q

  3. P = 3Q

  4. P = 4Q

  5. None of these

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Interest on P = P * 12 * 4 / 100 = 0.48P. Amount on Q = Q + Q * 11 * 4 / 100 = 1.44Q. 0.48P = 1.44Q => P = 3Q.

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