A shopkeeper purchased $245$ pieces of an article at $Rs$. $30$ per piece. He spent $Rs.$ $980$ on transport and $Rs.$ $1470$ on packing the articles. He sold the articles at the rate of $Rs.$ $50$ per piece. What is the percent profit earned?
$25$
$20$
$28$
$22.5$
By Selling $80\, ball$ pens for $Rs.\, 140$, a retailer loses $30 \% .$ How many ball pens should he sell for $Rs.\,104$ so as to make a profit of $30 \% ?$
Peter purchased a machine for $Rs$ $80000$ and spent $Rs. 5000$ on repair and $Rs.\, 1000$ on transport and sold it with $25 \%$ profit. At what price did he sell the machine? (in $Rs$)
While selling an article for $Rs.\, 18450,$ a person suffered a loss of $50 \%$. At what price he should have sold the article (in $Rs.$) to earn a profit of $50 \% ?$
The $CP$ of $19$ article is equal to the selling price of $15$ article. Gain $\%$ is?
Find $SP$ when $C P=R s. \,56 .25$ and $\operatorname{Gain}=20 \% ?$