zinc and copper are melted together in the ratio 9 : 11 . what is the weight of melted mixture , if 31.5 kg of zinc has been consumed in it ?
n0 = 9.0
n1 = 11.0
n2 = 31.5
t0 = n1 / n0
t1 = n2 * t0
answer = n2 + t1
print(answer)