What is the ratio of the simple interest earned on a certain amount at the rate of 21% per annum for 8 years to that earned on the same sum at the sam...

Question

What is the ratio of the simple interest earned on a certain amount at the rate of 21% per annum for 8 years to that earned on the same sum at the same rate for 21 years?

Options

A.

8:21

B.

21:5

C.

5:21

D.

21:8

simple interestratiopercentagetimeinterest calculation

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