If the selling price of $50$ articles is equal to the cost price of $40$ articles, then the loss or gain percent is
$20 \%$ loss
$20 \%$ gain
$25 \%$ loss
$25 \%$ gain
If the cost price of $20$ articles is equal to the selling price of $15$ articles, find the profit percent?
The difference between successive discounts of $40 \%$ followed by $30 \%$ and $45 \%$ followed by $20 \%$ on the marked price of an article is $Rs.\,12.$ The marked price of the article is (in $Rs.$)
A merchant purchases a wrist watch for $Rs.\,450$ and fixes its list price in such a way that after allowing a discount of $10 \%,$ he earns a profit of $20 \%$. Then the list price (in rupees) of the wrist watch is
A loss of $19 \%$ gets converted into profit of $17 \%$ when the selling price is increased by $Rs. 162$ . Find the cost price of the article. in $Rs.$
Profit obtained on selling an article for $Rs.\,310$ is equal to the loss incurred on selling that article for $Rs.\, 230.$ What will be the loss percentage when selling price is $Rs.\, 180$?