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(C) Let the principal amount be $P = 10x$ and the simple interest be $S.I. = 3x$.The rate of interest is $R = 6 \%$ per annum.The formula for simple i

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$5$

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(C) Let the principal amount be $P = 10x$ and the simple interest be $S.I. = 3x$.The rate of interest is $R = 6 \%$ per annum.The formula for simple interest is $S.I. = \frac{P 	imes N 	imes R}{100}$,where $N$ is the number of years.Substituting the given values into the formula:$3x = \frac{10x 	imes N 	imes 6}{100}$Dividing both sides by $x$ (assuming $x 
eq 0$):$3 = \frac{60N}{100}$$3 = \frac{3N}{5}$$N = 3 	imes \frac{5}{3} = 5 	ext{ years}$.Therefore,the required time is $5$ years.

Alipta received some amount of money from her father. In how many $years$ will the ratio of the money (principal) and the interest obtained from it be $10: 3$ at the rate of $6 \%$ simple interest per annum?

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