+0  
 
0
16
2
avatar+623 

http://prntscr.com/ldmkiy

critical  Nov 2, 2018
 #1
avatar+13567 
+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

ElectricPavlov  Nov 2, 2018
 #2
avatar+90968 
+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

CPhill  Nov 2, 2018

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