Question

On a certain sum the intrest paid after 3 years is ₹450 at 5% rate of interest per annum . Find the sum

Answer 1

$\sf{\bold{\green{\underline{\underline{Given}}}}}$

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• Simple Interest = Rs. 450
• Time = 3 years
• Rate = 5%

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$\sf{\bold{\green{\underline{\underline{To\:Find}}}}}$

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• Principle = ??

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$\sf{\bold{\green{\underline{\underline{Solution}}}}}$

$\sf{\red{\boxed{\bold{Interest = \dfrac{P \times R \times T}{100}}}}}$

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$\sf : \implies\: {\bold{ 450 = \dfrac{P\times 5 \times 3 }{100}}}$

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$\sf : \implies\: {\bold{ 450 = \dfrac{P\times 3 }{20}}}$

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$\sf : \implies\: {\bold{ P = \dfrac{450\times 20 }{3}}}$

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$\sf : \implies\: {\bold{ P = 150 \times 20 }}$

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$\sf : \implies\: {\bold{ P =Rs. 3000}}$

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$\sf{\bold{\green{\underline{\underline{Answer}}}}}$

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• Rs. 3,000 will amount Rs. 450 as simple interest in 3 years at 5% per annum

Answer 2

Step-by-step explanation:

FORMULA OF simple interest = (P×R×T/100)

For principal amount =(S.I.×100/R×T)

so, (450×100/5×3)

=45000/15

=3000 IS YOUR PRINCIPAL AMOUNT