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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?

13.5 years
24 years
34.5 years
45 years

Answer:- 1

Explanation:-

Solution:

\begin{aligned} P = Rs . 450 \\ S .I . = Rs . 81 \\ R = 4 .5 % \\ Time \\ = (\frac{100 \times 81}{450 \times 4.5}) years \\ = 4 years . \end{aligned}

$\eqalign{ & {\text{P}} = {\text{Rs}}{\text{.}}\,{\text{450}} \cr & {\text{S}}{\text{.I}}{\text{.}} = {\text{Rs}}{\text{. 81}} \cr & {\text{R}} = {\text{4}}{\text{.5}}\% \cr & {\text{Time}} \cr & = \left( {\frac{{100 \times 81}}{{450 \times 4.5}}} \right){\text{years}} \cr & = 4\,{\text{years}}{\text{.}} \cr}$

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", "dateCreated": "7/24/2019 10:09:12 AM", "author": { "@type": "Person", "name": "Nitin Sir" } }, "suggestedAnswer": { "@type": "Answer", "text": "

Solution:

\begin{aligned} P = Rs . 450 \\ S .I . = Rs . 81 \\ R = 4 .5 % \\ Time \\ = (\frac{100 \times 81}{450 \times 4.5}) years \\ = 4 years . \end{aligned}

$\eqalign{ & {\text{P}} = {\text{Rs}}{\text{.}}\,{\text{450}} \cr & {\text{S}}{\text{.I}}{\text{.}} = {\text{Rs}}{\text{. 81}} \cr & {\text{R}} = {\text{4}}{\text{.5}}\% \cr & {\text{Time}} \cr & = \left( {\frac{{100 \times 81}}{{450 \times 4.5}}} \right){\text{years}} \cr & = 4\,{\text{years}}{\text{.}} \cr}$ ", "dateCreated": "7/24/2019 10:09:12 AM" } }

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