What is the maximum hourly output based on bottleneck time of a work cell with six steps visited in numerical order using process step times shown below? Assume steps are independent of each other. Min is minutes, secs is seconds.

Step		1		2		3		4	5		6
Time		.90 min		1 min 4 secs		54secs		72 secs	56 secs		.85 min
	a.		b.		c.		d.			e.		f.
	35		40		45		48			50		55