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Earn 100

A person invested some amount at the rate of 12 per cent simple interest and the remaining at 10 per cent. He received yearly an interest of  130. Had he interchanged the amounts invested, he would have received an interest of  134 . How much money did he invest at different rates?

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Important Questions on Simple Interest

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The simple interest on a sum of money for 10 years is  3,130. If the principal becomes 5 times after 5 years, what will be the total interest obtained after 10 years?
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Ankita borrows  7,000 at simple interest from a lender. At the end of 3 years, she again borrows  3,000 and settled that amount after paying  4,615 as interest after 8 years from the time she made the first borrowing. What is the rate of interest?
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A sum of  850 is lent in the beginning of a year of a certain rate of interest. After 8 months, a sum of  210 more is lent but at the rate twice the former. At the end of the year,  19.80 is earned as interest from both the loans. What was the original rate of interest?