How much time will it take for an amount of Rs. 450 to yield Rs. 81 as interest

Question

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?

Options:

A . 3.5 years

B . 4 years

C . 4.5 years

D . 5 years

Answer: Option D

Time = \(\left(\frac{100\times81}{450\times4.5}\right)years = 4 years\)

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