The difference between the compound interest and the simple interest earned on a sum of money at the end of $4$ years is $R s .256 .40$ . find the sum .
Which of the following information given in the statements P and Q is / are necessary
P: Amount of simple interest after $4$ years
Q: Rate of interest per annum

Only P is necessary

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Only Q is necessary

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Both P & Q are necessary

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Neither of P & Q are necessary

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Solution

The correct option is B Only Q is necessary
To find the sum, difference between C.I and S.I, time and rate of interest is needed

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The correct option is B Only Q is necessaryTo find the sum, difference between C.I and S.I, time and rate of interest is needed

The correct option is B Only Q is necessary
To find the sum, difference between C.I and S.I, time and rate of interest is needed