# elasticity doubt jnu 2011 Classic List Threaded 7 messages Open this post in threaded view
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## elasticity doubt jnu 2011

 Q51. jnu 2011 suppose the price of elasticity of demand of good X is 0.2. if the price of X rise by 2.8%, ht effect will it leave on the total exp of good X ? i got till till %change in x = .56 after that how did we reach the conclusion that exp will rise by 2.2%. ? cn someone pls help..
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## Re: elasticity doubt jnu 2011

 hey tim expenditure=P*Q so %change in exp=%change in P + %change in Q. or u can take P and Q to be 100 initially and calculate the actual numbers.
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## Re: elasticity doubt jnu 2011

 so it comes out to be 2.8-.56 = 2.2 ryt ? thnk u vasudha :)
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## Re: elasticity doubt jnu 2011

 HEY PLZZ ELABORATE HOW TO GET THE ANS FOR CHANGE IN Q ? I HAVE TAKEN P N Q= 100  THEN M GETTING EXP= 10000 NOW AFTER THE % INCREASE IN P NEW P BECOMES 102.8 AFTER THIS M NT ABLE TO PROCEED .. HELP!!!
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## Re: elasticity doubt jnu 2011

 i've done this way .2=%change in x/2.8 (%change in p=2.8) 2.8 multiied by .2 = .56 and after this she has explained. :)