Question

10 rooms, numbered 1 to 10, need to be rewired, but there are constraints on the order in which this can get done. Rooms 5 and 8 must be rewired before starting on 6 Room 1 must be rewired rewired before starting on 7 and 9 Rooms 4 and 5 must be rewired before starting on 2 Rooms 8 and 10 must be rewired before starting on 5 Room 3 must be rewired rewired before starting on 1 and 4 Rooms 9 and 7 must be rewired before starting on 10 Rooms 9 and 10 must be rewired before starting on 8 Rewiring a room takes one full day. In a day, any number of rooms can be rewired simultaneously provided the constraints above are met. What is the minimum number of days required to complete the rewiring?

Answer 1

1950s house. 
Currently vacant but bathroom work ongoing. 
Move in date 12/10. What work complte by then

Answer 2

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