This is aptitude questions and answers section on Simple Interest with explanation for various interview, competitive examinations and entrance tests.

1. Find the principle on a certain sum of money at 5% per annum for 2 2/5 years if the amount being Rs.1120?
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2. What sum of money will produce Rs.70 as simple interest in 4 years at 3 1/2 percent?
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3. At what rate percent on simple interest will Rs.750 amount to Rs.900 in 5 years?
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4. What is the rate percent when the simple interest on Rs.800 amount to Rs.160 in 4 Years?
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5. Find the simple interest on Rs.500 for 9 months at 6 paisa per month?
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