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avatar+153 

deleted

 May 4, 2019
edited by SoulSlayer615  Oct 23, 2019
 #1
avatar+104933 
+1

We  have that 

 

(36-20) take only Mathematics = 16

(27-20)  take only Physics  = 7

20 take both....

 

So  (60) - ( 16 + 7 + 20) =   

 

60 -  43   =

 

17  take neither....

 

 

cool cool cool

 May 4, 2019
 #2
avatar+128 
-2

36+27 = 63

 

63-20 = 43

 

60-43 = 17.

 

17 people took neither.

 

~~Hypotenuisance

 May 6, 2019

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