When price of a commodity X falls by 10 percent , its demand rises from 150 units to 180
Channel: Doubtnut
Date: 2020-06-14

When price of a commodity X falls by 10 percent , its demand rises from 150 units to 180 units. Calculate its price elasticity of demand . How  much should be the percentage fall in its price so that its demand rises from 150 to 210 units.