If the cost price of $20$ articles is equal to the selling price of $15$ articles, find the profit percent?
$33 \frac{1}{2}$
$33 \frac{1}{3}$
$33 \frac{1}{5}$
$33 \frac{1}{7}$
A man bought orange at the rate of $8$ for $Rs.\,34$ and sold them at the rate of $12$ for $Rs.\,57.$ How many oranges should be sold to earn a net profit of $Rs.\,45?$
A dealer marks his goods $30 \%$ above his cost price and then allows $15 \%$ discount on it. What is the cost price of an article on which he gains $Rs.\,84?$
$X$ sells two articles for $Rs.\, 4,000$ each with no loss and no gain in the interaction. If one was sold at a gain of $25 \%$ the other is sold at a loss of........$\%$
If the ratio of the cost price and selling price of an article is $20: 21,$ then what will be the profit percent?
Mr. Kapur purchased two toy cycles for $Rs. 750$ each. He sold these cycles, gaining $6 \%$ on one and losing $4 \%$ on the other. The gain or loss percent in the whole transaction is