In a game of 50 points; A can give B 5 points and C 15 points. Then how many points B can give C in a game of 90 ?  Choose the correct answer:
A) can give C 1 points  B) can give C 4 points  C) can give C 2 points  D) can give C 6 points  E) can give C 20 points
A: B = 50 : 45, A : C = 50 : 35.   B/C = ( B/ A * A/C) = (45 / 50 * 50 / 35) = 9/7 = 90 /70   Therefore ,In a game of 90, B can give C 20 points.   Answer is can give C 20 points.
<result>E</result>
In a game of 50 points; A can give B 5 points and C 15 points. Then how many points B can give C in a game of 90 ?