3 ltr of water is added with 9 ltr of a solution containing 57 % of alcohol in the water . the % of alcohol in the new mixture is ?
n0 = 3.0
n1 = 9.0
n2 = 57.0
t0 = n0 + n1
t1 = n2 / 100.0
t2 = n1 * t1
t3 = t2 / t0
answer = t3 * 100.0
print(answer)