The price of commodity is ₹ 20 per unit and total expenditure on it ₹ 1,000. when its price falls to ₹ 18 per unit, total expenditure increases by 8 per cent. Calculate its price elasticity of demand by percentage in its demand.

when price of a good falls from ₹ 5 to ₹ 3 per unit, its demand rises by 40 % . Calculate its price elasticity of demand.

When price of a good falls from ₹ 15 per unit to ₹ 12 per unit. Its demand rises by 25 percent. Calculate price elasticity of demand.

When the price of a commodity is ₹ 20 per unit, its quantity demanded units. When its price rises by ₹ 5 per unit, its quantity demanded falls by 20 per cent. Calculate its price elasticity of demand. Is its demand elastic? Give reasons for answer.

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.

When price of a good falls from Rs. 15 per unit to Rs. 12 per unit , its demand rises by 25 percent . Calculate price elasticity of demand.

the price of a commondity is ₹ 12 per unit and its quantity demanded is 500 units. When price rises by ₹ 3 per unit, its quantity demanded falls by 150 units. Calculate its price elasticity of demand. Is demand elastic ?