A grocer bought $15$ sweets at Rs $72$ . He sold them at a gain Rs $18$ . Find his profit %. Also, find the selling price of $20$ sweets.

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Solution

Here,C.P. of $15$ sweets $= R s .72$

Profit on $15$ sweets = $R s .18$

Therefore Profit% = $\frac{18}{72} \times 100$ %

$= 25$ %

Now, S.P. of $15$ sweets $= R s . (72 + 18) = R s .90$

Therefore S.P. of $1$ sweet $= R s . \frac{90}{15}$

$= R s .6$

Hence, S.P. of $20$ sweets $= R s . (20 \times 6)$

$= R s .120$

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A grocer bought 15 sweets at Rs 72. He sold them at a gain Rs 18. Find his profit %. Also, find the selling price of 20 sweets.

Here,C.P. of 15 sweets =Rs.72Profit on 15 sweets = Rs.18Therefore Profit% = 1872×100% =25%Now, S.P. of 15 sweets =Rs.(72+18)=Rs.90Therefore S.P. of 1 sweet =Rs.9015 =Rs.6 Hence, S.P. of 20 sweets =Rs.(20×6) =Rs.120

A grocer bought $15$ sweets at Rs $72$ . He sold them at a gain Rs $18$ . Find his profit %. Also, find the selling price of $20$ sweets.