4. At a game of billiards, A can give B 15 points in 60 and A can give C to 20 points in 60. How many points can B give C in a game of 90?
A. 20 points
B. 12 points
C. 30 points
D. 10 points
4. At a game of billiards, A can give B 15 points in 60 and A can give C to 20 points in 60. How many points can B give C in a game of 90?
A. 20 points
B. 12 points
C. 30 points
D. 10 points