If the selling price of $40$ articles is equal to the cost price of $50$ articles, the loss or gain percent is
$25 \%$ gain
$20 \%$ gain
$25 \%$ loss
$20 \%$ loss
Arun marks up the computer he is selling by $20 \%$ profit and sells them at a discount of $15 \%$. Arun's net gain percent is
Tarun bought a $TV$ with $20 \%$ discount on the labelled price. Had he bought it with $25 \%$ discount, he would have saved $Rs.\,500.$ At what price did he buy the $TV?$
A cloth dealer professes to sell cotton at cost price, but uses a meter having a length of $80\, cm$ only and charges for the meter. Find his gain percent.
A person bought an article for $Rs\,240.$ For how much should he sell it so as to lose $20 \% ?$
A shopkeeper marks his goods at $25 \%$ above his cost price and allows customers a discount of $12 \frac{1}{2}\%$ for cash. Find his $\%$ profit?