Profit and Loss - General Questions

An article bought for Rs. 1,460 is sold for Rs. 1,898. What is the gain percent?

An article bought for Rs. 600 is sold for Rs. 720. What is the gain percent?

A dishonest dealer professes to sell his goods at cost price but uses a weight of 960 g for a kilogram. What is his gain percent?

A dishonest dealer professes to sell his goods at cost price but uses a weight of 960 g for a kilogram. What is his gain percent?

A shopkeeper marks his goods 20% above the cost price and allows a discount of 25%. What is his gain percent?