A trader allows a trade discount of $20 \%$ and a cash discount of $6 \frac{1}{4} \%$ on the marked price of the goods and gets a net gain of $20 \%$ of the cost. By how much above the cost should the goods be marked for the sale? (in $\%$)

A shopkeeper allows a discount of $10 \%$ on the marked price of a camera. Marked price of the camera, which costs him $Rs.\, 600,$ to make a profit of $20 \%$ should be (in $Rs.$)

Kamya purchased an item for $Rs.\, 46,000$ and sold it at aloss of $12$ percent. With that amount she purchased another item which he sold at a gain of $12 \% .$ What was her overall gain/loss?

If a stall sell a pizza at $Rs.\, 200$ he makes $20 \%$ loss if he wants to make $10 \%$ profit then at what price (in $Rs.$) should he sell?

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 $Rs.$)