1.  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. 30 points
B. 20 points
C. 10 points
D. 12 points

Answer: Option C

Explanation:

A : B = 60 : 45.

A : C = 60 : 40.

B = B x A = 45 x 60 = 45 = 90
C A C 60 40 40 80

  = 90 : 80.

B can give C 10 points in a game of 90.