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

$A$ garment company declared $15\%$ discount for wholesale buyers. Mr. Ashish bought garments from the company for $Rs. 25000$ after getting the discount. He fixed the selling price of the garments in such a way that he earned a profit of $8\%$ on the original company price. What is the approximate total selling price? (in $Rs.$)

Maninder bought two horses at $Rs. 40,000$ each. He sold one horse at $15\%$ gain, but had to sell the second horse at a loss. If he had suffered a loss of $Rs. 3,600$ on the whole transaction, then the selling price of the second horse is (in $Rs.$)

An item costing $Rs. 200$ is being sold at $10 \%$ loss. If the price is further reduced by $5 \%$,the selling price will be (in $Rs.$)

If the selling price is doubled,the profit triples. Find the profit percent.

$A$ dishonest dealer professes to sell his goods at cost price but uses a weight of $960 \, g$ instead of a $1 \, kg$ weight. Find his gain $\%$. (in $\%$)