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Estimation Using Percentages in Situations

Aman earn R...

Question

Aman earn $R s 147$ as interest alster $3 y e a r s$ at $7 %$ per annum. How much did he Invest.

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Solution

As simple interest $= \frac{P r i n c i p l e \times r a t e \times t i m e}{100}$
$\Rightarrow$ Principle $= \frac{147 \times 100}{7 \times 3} =$ Rs. $700$ .

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