Question

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?

Answer 1

30 is increased from 60 to 90
so,20+30=50

Answer 2

Answer: 10points

Explanation:

A : B = 60 : 45.

 

A : C = 60 : 40.

 

B/C = (B/A*A/C) = (45/60*60/45) = 45/40 = 90/80 = 90:80

 

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