Ravi lends 2400 on simple interest to Harsh for a period of 5 years. He lends a part of the amount at 4% interest and the rest at 6% and receives 640 as the amount of interest. How much money did he lend on 4% interest rate?
A
1800
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B
1600
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C
1200
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D
800
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Solution
The correct option is D 800 Interest received per year =6405=128 Effective interest %=1282400×100=5.33% Required ratio is 1: 2. Amount of money lent at 4% profit =13×2400=800