in the faculty of reverse - engineering , 230 second year students study numeric methods , 423 second year students study automatic control of airborne vehicles and 134 second year students study them both . how many students are there in the faculty if the second year students are approximately 80 % of the total ?
n0 = 230.0
n1 = 423.0
n2 = 134.0
n3 = 80.0

answer = n0 + n1
print(answer)