Question:In a game in of 100 points, A can give B 20 points and C 28 points. Then, B can give C : 

A 8 points 
B 10 points 
C 14 points 
D 40 points 

+ Answer
B 

+ Explanation
A : B = 100 : 80 and A : C = 100 : 72

`:. B/C = (B/A xx A/C)`

  `= (80/100 xx 100/72)`

`= 10/9 = 100/90`

`= 100 : 90`

:. B can give C 10 points

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Irin Moni

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