in a school with 632 students , the average age of the boys is 12 years and that of the girls is 11 years . if the average age of the school is 11 years 9 months , then the number of girls in the school is
n0 = 632.0
n1 = 12.0
n2 = 11.0
n3 = 11.0
n4 = 9.0
t0 = n4 / n1
t1 = n0 * n1
t2 = n2 + t0
t3 = n0 * t2
answer = t1 - t3
print(answer)