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When price is ₹ per unit, demand for a commodity is 100 units. As the price falls to ₹ 8 per unit , demand expands to 150 units. Calculate elasticicty of demands.

A 5 per cent fall in the price of a good raises its demand from 300 units to 318 units. Calculate its price elasticity of demand.

A person buys 10 units of a good at ₹6 per unit. When the price falls to ₹5 per unit he buys 14 units. Calculate degree of price elasticy of demand .

At a price of Rs. 50 per unit the quantity demanded of a commodity is 1000 units . When its price falls by 10 percent , its quantity demanded rises to 1080 units . Calculate its price elasticity of demand . Is its demand inelastic ? Given reasons for your answer.

The quantity demanded of a commodity rises from 800 units to 850 units when its price falls from Rs. 20 per unit to Rs. 19 per unit . Calculate its elasticity of demand.

when price of a good is ₹ 7 per unit, a consumer buys 12 units. When price falls to ₹ 6 per unit, he spends ₹ 72 on the good. Calculate price elasticity of demand by using the percentage method. Comment on the likely shape of demand curve based on this measure of elasticity.