Consider a laundry service that has 3 steps to its process. Step 1 is Washing, S

Question

Consider a laundry service that has 3 steps to its process. Step 1 is Washing, Step 2 is Drying, Step 3 is Ironing & Step 4 is Packaging. Step 1 Washing is a batch operation, with a batch size of 50 pieces of clothing, variable time of 15 seconds per piece and a fixed time of 20 minutes. There is one washing machine. Step 2 Drying is also a batch operation, with a batch size of 40 pieces of clothing, variable time of 20 seconds per piece, and a fixed time of 60 minutes. There is one drying machine. Step 3 is a manual operation where a team of 2 workers iron the clothes; each worker takes on average 3 minutes to iron a piece of clothing. Step 4 is again a manual operation, where only one worker packages the clothes in an average of 2 minutes per piece; only 50% of the clothes need packaging. Answer the next several questions based on the data above.

The lead time to process a batch for drying is (pick the closest integer):

Question 27 options:

a 63 mins

b 73 mins

c 83 mins

d 93 mins

Explanation / Answer

For drying:

Batch Size = 40

Fixed time taken = 60 mins.

variable time/piece = 20 seconds.

Total variable time = (20*40)/60 = 13.33 mins.

Therefore, total lead time for a batch for drying operation = Fixed time + Variable time = 60+13.33 = 73.33 ~73 Minutes.

So, the correct option is b:73 Minutes

Related Questions

Navigate

• Browse (All)
• Browse C
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.