an assembly line produces 15 cogs per hour until an initial order of 60 cogs is completed . the speed of the assembly line is then immediately increased so that it can produce 60 cogs per hour until another 60 cogs are produced . what is the overall average output , in cogs per hour , for the assembly line during this whole time ?
n0 = 15.0
n1 = 60.0
n2 = 60.0
n3 = 60.0
t0 = n1 / n0
t1 = n1 * 2.0
t2 = t0 + 1.0
answer = t1 / t2
print(answer)