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https://vle.mathswatch.co.uk/images/questions/question15473.png

 

 

winkwinkwink

 Feb 13, 2018
edited by lynx7  Feb 13, 2018
edited by lynx7  Feb 13, 2018
 #1
avatar+429 
+1

Tom is incorrect
Lower bound=55000 
Upper bound=65000 
Lower bound=5350 
Upper bound=5450 
10%×55000=5500 

 

smileysmileysmiley

 Feb 13, 2018

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