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http://prntscr.com/ldmkiy

 Nov 2, 2018
 #1
avatar+18849 
+1

Hard to see, but it looks like 1/4 of her spending was on petrol

   if 1/4 = 25   (90 degrees on the pie chart)

Then her total spending was 4 x L25 =  L100

 Nov 2, 2018
 #2
avatar+102948 
+1

She spent $25 on petrol....the central angle of the petrol  sector = 90°

 

So....this must represent  1/4  of the circle since the whole circle measures 360°

 

So.....she must have spent  4 times   $ 25   =  $100

 

 

 

cool cool cool

 Nov 2, 2018

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