Question
What will be the ratio of simple interest earned by certain at the same rate of interest for 6 years and that for 6 years and that for 9 years ?
Answer: Option C
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Let the principal be P and rate of interest be R%
`:.` Required ratio =` [((P xx R xx 6)/(100))/((P xx R xx 9)/(100))]`
= `(6PR)/(9PR) = 6/9` = 2 : 3
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