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Mathematics, 22.03.2021 02:30 st23pgardner

Mary invested $200 for 5 years at 5% per annum. john invested $500 at the same rate. if they both received the same amount of money in simple interest, for how many years did john invest his money?​

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Mary invested $200 for 5 years at 5% per annum. john invested $500 at the same rate. if they both re...
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