By selling $90$ pens for $Rs.\, 80$ a man loses $20 \%$. What should be the selling price (in $Rs.$) of $90$ pens for $20\%$ profit?
$90$
$100$
$110$
$120$
Hundred oranges are bought at the rate of $Rs.\, 350$ and sold at the rate of $Rs.\, 48$ per dozen. The percentage of profit or loss is
$APD$ printed $3000$ copies of 'Career Power' at a cost of $Rs.$ $240000 .$ It gave $500$ copies free to different philanthropic institutions. It allowed a discount of $25 \%$ on the published price and gave one copy free for every $25$ copies bought at a time. It was able to sell all the copies in this manner. If the published price is $Rs.$ $325,$ then what is its overall gain or loss percentage in the whole transaction?
If a commission at the rate of $10 \%$ is given to a bookseller on the marked price of a book by the publisher, the publisher gains $20 \%$. If the commission is increased to $15 \%$ then the gain percent would be
By selling an umbrella for $Rs.\, 300,$ a shopkeeper gains $20 \%$. During a clearance sale, the shopkeeper allows a discount of $10 \%$ on the marked price. His gain per cent during the sale is
A person purchased a saree for $Rs.\,7710$ after availing a net discount of $Rs.\,1285.$ The percentage of discount, the saree$-$shop offers, is