How to work out price elasticity of demand without either the the quantity or price?

jamesscot84 Mon Aug 20, 2012 4:21 am

I know how to work out PED with all of the figures of quantity and price however i was looking and in some exam questions they dont give you either the figures for price or quantity and give you the elasticity and want you to work out with increase or decrease in revenue. I was taught how to do this ages ago but dont remember and revision guides dont teach this. I appreciate anyone that can help.

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Price in India