Read the passage below and solve the questions based on it.
Two products A and B can be made on either of the two extrusion machines M1 or M2. The time in minute, taken by these products according to the machine used, are as given below. Assume a day has 8 working hours.
If A is produced only on Machine M1 and B produced only on machine M2, then what is the unutilized time on M2 in a day, if A and B are produced in 1:1 ratio?