For the in-line skate example described in Problem 10, design a production line to achieve an output

Question:

For the in-line skate example described in Problem 10, design a production line to achieve an output rate of 90 per hour.
TaskTime (sec.)
1...........20
2...........10
3...........30
4...........10
5...........30
6...........20
7...........10
8...........20