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(110-90)/[(110+90)/2]/(12-8)/[(12+8)/2]

 Feb 20, 2017
 #1
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(110-90)/[(110+90)/2]/(12-8)/[(12+8)/2]

 

= (20)/[(200)/2]/(4)/[(20)/2]

 

= 20/[100]/4/[10]

 

= 0.2/4/10

 

= 0.05/10

 

= 0.005

 Feb 20, 2017

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