The price of a commodity is ₹10 per unit and its quantity supplied is 500 units. If its price falls by 10 per cent and quanity supplied falls to 400 units, Calculate its price elasticity of supply.

The price of a commodity is ₹12 per unit and its quantity supplied is 500 units. When its price rises to ₹15 per units, its quantity supplied rises to 650 units. Calculate is price elasticity of supply. Is supply elastic?

At a price of 40 per unit, the quantity supplied of a commodity is 400 units. When its price falls by 10 per cent, its quantity supplied falls by 36 units. Calculate its elasticity of supply.

At a price of 10 per unit, the quantity supplied of a commodity is 400 units. If its per unit and the quantity supplied rises by 10 per cent, calculate its price elasticity.

The price of a commodity is ₹ 10 per unit and its quantity demanded at this price is 500 units. If its quantity demanded rise by 75 units due to fall in price by 10 per cent, calculate its price elasticity of demand.

The price of commodity is ₹ 15 per unit and its quantity demanded is 500 units. Its quantity demanded rises by 80 units as a result of fall in its price by 20 per cent. Calculate its price elasticity of demand. Is its demand inelastic ? Give reason for your answer.