Question

At what rate of simple interest will a deposit earn interest equal to three-fifths of the deposit in 4years

Answer 1

Answer:

Let principal be x then SI will be 3x/5

Now 3x/5=x×R×4/100

solving this we get R=15

0.0

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Answer 2

Answer:

R = 100xI/PN

R=3xpxloo/5xpx4=3oop /20p=15 %