Simple Interest Practice Test 1

Question : 33 of 40

Marks: +1, -0

At what rate per cent per annum will the simple interest on a sum of money be

2/5

of the amount in 10 years?

Solution:

Let prinipal = Rs. x, then interest = Rs

2/5x

R={2/5x×100}/{x×100}

={2x×100}/{5×x×10}=4%

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