As price of a commodity increases from ₹ 4 per unit to ₹ 5 per unit, demand falls from 20 units to 10 units. Find out the elasticity of demand.

Price of a commodity fall from ₹ 20 to ₹ 15 per unit. Its demand rises from 600 units to 750 units. Calculate its price elasticity of demand.

If price of a commodity falls from ₹ 60 and ₹58 per units , its supply falls from 400 units to 300 units . Find out its elasticity of supply.

As a result of 10% rise in the price of a good, its demand falls from 100 unit to 90 units. Find out the price elasticity of deamand.

Comment upon the degree of elasticty of demand for Good X, in the following given situation, if the price of the commodity rises from ₹5 per unit to ₹ 7 per unit and the quantity demand falls from 20 units to 16 units using proportionate method.

Price of a good falls from ₹ 10 to ₹8. As a result, its demand rises from 80 units to 100 units. What is the price elasticity of demand ?

Price of a good rises from ₹ 10 to ₹ 12 and its demand falls from 120 units to 100 units.Calculate price elasticity of demand.