The marked price of an article is 32% above its cost price. What is the rate of discount he can offer so that he gains 10%

The marked price of an article is 80% more than its cost price. What should be the discount (in %) offered by the shopkeeper so that he earns a profit of 44%?

A trader marks his goods at 5% above its cost price. What is the rate of discount offered by him if he sells them at a loss of 10%?

Ajay marked an article at 60% above its cost price Find the maximum percentage of discount he can offer and still avoid incurring a loss.