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A man puts out Rs 500 for 4 years on simple interest and Rs 600 for 3 years The total interest he receives is Rs 190 . What is the rate percent per annum?

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Your problem `->` A man puts out Rs 500 for 4 years on simple interest and Rs 600 for 3 years The total interest he receives is Rs 190 . What is the rate percent per annum?


Let the rate(`R`) % per annum = `X`

`SI` on Rs. `500 = (P*R*N)/100 = (500 * X * 4) / 100 = 20 X`

`SI` on Rs. `600 = (P*R*N)/100 = (600 * X * 3) / 100 = 18 X`

Total `SI` = Rs. `190`

`20 X + 18 X = 190`

`38 X = 190`

`X = 190 / 38 = 5`

Rate is `5` %






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