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If price of an article decreases from P1 to Rs 25, quantity demanded increases from 900 units to 1200 units. If point elasticity of demand is 2 find P1?1). Rs. 202). Rs. 303). Rs. 354). Rs. 15

Answer»

Point Elasticity Demand $ \LARGE= \frac{P}{Q} \TIMES \frac{\delta Q}{\delta P} $

$ \large - 2 = \frac{P1}{900} \times \frac{1200 - 900}{25 - P1} $

$ \large -2 = \frac{P1}{75 - 3P1}$

$ \large -150 + 6P1 = P1 $

$ \large P1 = 30 $



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