every disk in a bag is either blue , yellow or green . the ratio of blue disks to yellow disks to green disks in this bag is 3 : 7 : 8 . if the total number of disks in the bag is 144 , how many more green disks than blue disks are in the bag ?
n0 = 3.0
n1 = 7.0
n2 = 8.0
n3 = 144.0
t0 = n0 + n1
t1 = n2 - n0
t2 = n2 + t0
t3 = n3 / t2
answer = t3 * t1
print(answer)