in x game of billiards , x can give y 20 points in 60 and he can give z 30 points in 60 . how many points can y give z in x game of 80 ?
"x scores 60 while y score 40 and z scores 30 . the number of points that z scores when y scores 80 = ( 80 * 30 ) / 40 = 60 . in x game of 100 points , y gives ( 80 - 60 ) = 20 points to c . b"
subtract(multiply(subtract(60, 20), const_3), multiply(subtract(60, 30), const_3))