Question
A sum was put a simple interest at a certain rate for 2 years. Had it been put at 3% higher rate, it would have fetched Rs. 72 more. The sum is:
Answer: Option A
- Let the sum be Rs. x and original rate be R%. Then,
x x (R + 3) x 2 - x x R x 2 = 72 100 100 2Rx + 6x - 2Rx = 7200 x = 1200.
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- Let the sum be Rs. x and original rate be R%. Then,
x x (R + 3) x 2 - x x R x 2 = 72 100 100 2Rx + 6x - 2Rx = 7200 x = 1200.
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