A man gains $15 \%$ by selling a calculator for a certain price. If he sells it at the triple the price, then what will be the profit percentage?
$125$
$175$
$225$
$245$
When a book is sold at its Marked Price it gives a profit of $40 \% .$ What $\%$ will happen if it is sold at half the marked Price?
A fair price shopkeeper makes $10 \%$ profit on his goods. He lost $20 \%$ goods during theft. His. loss percent is
A trader marked the price of his commodity so as to include a profit of $25 \% .$ He allowed discount of $16 \%$ on the marked price. His actual profit was (in $\%$)
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 $30 \% ?$
A sells an article to $B$ at a gain of $25 \%, B$ sells it to $C$ at a gain $20 \%$ and $C$ sells it to $D$ at a gain of $10 \% .$ If $D$ pays $Rs.\, 330$ for it, how much did it cost $A?$ (in $Rs.$)