A consumer buys 20 units of a good at a price of ₹5 per units. He incurs an expenditurs of ₹ 120 , when he buys 24 units. Calculate price elasticity of demand using the percentage method. Comment upon the likely shape of demand curve based on this information.

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.

A consumer buys a certain quantity of a good at a price of ₹ 10 per unit. When price falls to ₹ 8 per unit she buys 40% more quantity. Calculate price elasticity of demand.

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

A consumer buys 80 units of a good at a price of ₹ 4 per unit. Due to fall in its in its price , he buys 100 units of the good. If price elasticity of demand is (-) 1 find the new price.