In a game of 100 points,A can give B 20 points and C 28 points.Then, B can give C :	Pick one.
A) 8 points
B) 10 points
C) 14 points
D) 40 points
E) 50 points
Solution   A : B = 100 : 80 and A : C = 100 : 72.   ∴ B/C=(B/C x A/C) = (80/100 x 100/72)= 10/9 =100/90= 100 : 90.   ∴ B can give C 10 points.   Answer 10 points
<result>B</result>
In a game of 100 points,A can give B 20 points and C 28 points.Then, B can give C :