Aptitude - Aptitude-Profit Loss

A man purchases two clocks A and B at a total cost of 650 Rs. He sells A with 20% profit and B at a loss of  25% and gets the same selling price for both the clocks. What are the purchasing price of A and B respectively 

A shopkeeper marks his goods 30% above his cost price but allows a discount of 10% at the time of sell.His gain is ?

A man sold two chairs at 1200rs each.On one he gained 20% and on the other he lost 20%.His gain or loss in the whole transaction is ? 

If a man were to sell his chair for 720rs.,He would lose 25%.to gain 25% he should sell it for?

A person sold a horse at a gain of 15%.Had he bought it for 25% less and sold it for 600rs less, he would have made a profit of 32%.The cost price of the Horse was?