1.	Using the directed graph, how many different routes are there to get from the Boston plant to the Worcester plant in exactly two transfers?
		A.	2	B.	1
		C.	3	D.	4
		Hint
	2.	Using the directed graph, how many different routes are there to get from the Boston plant to the Fitchburg plant in at most two transfers?
		A.	4	B.	5
		C.	3	D.	2
		Hint
	3.	Using the directed graph, what is the fewest number of transfers possible to get from the Fitchburg plant to the Providence plant?
		A.	2	B.	3
		C.	0	D.	1
		Hint
	4.	How many ways can supplies be transferred directly to Fitchburg from other cities?
		A.	4	B.	2
		C.	1	D.	3
		Hint
	5.	To which city is there exactly one way in which supplies can be transferred directly from another city?
		A.	Providence	B.	Worcester
		C.	Boston	D.	Lowell
		Hint