Question:
Radha earns 22% of her investment. If she earns Rs 187, then how much did she invest?
Solution:
Let the investment be Rs $x$.
i. e., $22 \%$ of $x=187$
$\Rightarrow \frac{22}{100} x=187$
$\Rightarrow x=\frac{18700}{22}$
$=850$
$\therefore$ Radha invest $s$ Rs $850 .$
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