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Earn 100

The simple interest on a sum of money will be  190 after 7 yr. In the next 7 yr, principal becomes 3 times. What will be the total interest at the end of the 14th yr?

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Important Questions on Simple and Compound Interests

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A sum of money becomes five times at simple interest of 8% per annum. At what rate per cent will it become seven fold?
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The sum of money that will amount to  5105 in 612 yr at 414% per annum at simple interest is
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A person lent a certain sum of money at 4% simple interest and in 5 yr the interest amounted to  520 less than the sum lent. The sum lent was
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The simple interest on a sum of money will be 600 after 10 years. If the principal is trebled after 5 years, the total interest at the end of 10 years will be: 
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Find the compound interest on 5500 at 9% per annum for 2yr, if the interest is compounded annually?
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Find compound interest on ₹ 15000 at 10% per annum for 212yr. If the interest is compounded annually?
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Find compound interest on  2000 for 3 yr, if the rate of interest for first year is 5%, second year is 6% and third year is 7%.
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The difference between the interest received from two different banks on  750 for 2 yr is  90. The difference between their rates is