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A consumer buys 40 units of a good at the price of Rs. 3 per unit. When the price rises to Rs. 4 per unit, he buys 30 units. Calculate the price elasticity of demand by total expenditure method. |
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Answer» Solution :`{:("Price (Rs.)","Quantity (in UNITS)","Total EXPENDITURE in Rs."("Price"xx"Quantity")),("10","20","200"),("8","24","192"):}` Demand is UNITARY elastic (ED = 1) as total expenditure remains the same at Rs. 120 with an INCREASE in price from Rs. 3 to Rs. 4. |
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