The demand curve of a commodity is expressed as `D_(x)20 - 2P`. If slope of the demand curve is given to be (-2). Calculate price elasticity of demand for the commodity when demand is 10 units.

The demand curve of a commodity is expressed as D_(x)=40-5P . If slope of the demand curve is given to be (-2) , calculate price elasticity of demand for the commodity when demand is 20 units.

The demand curve for the commondity is given as D_(x)=10 +2P . If slope of the demand curve is given to be (-2), calculate price elaticity of demand for the commodity when demand is 10 units.

The demand curve for the commondity is given as D_(x)=20 -2P . If slope of the demand curve is (-2), calculate price elasticity of demand for the commodity when the price of the commodity is ₹5 per unit.

A unit price elastic demand curve will touch

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.

The price elasticity of demand of commodity X is 1/2 of price elasticity of demand of commodity. When price of X falls by 40% , its demand rises by 20 units. Calculate price elasticity of demand of commodity X and Y, it originally 100 units of X were demanded at price of ₹ 5 per unit.