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How much time will it take for an amount of Rs. 450 to yield Rs. 81 as interest at 4.5% per annum of simple interest?

3.5 years
4 years
4.5 years
5 years

Correct Answer: 4 years

Explanation:

Time =	❨	100 x 81	❩years	= 4 years.
		450 x 4.5

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