CAT 2017 Slot 1 — DILR Question 2
Answer the following question based on the information given below.
Healthy Bites is a fast food joint serving three items: burgers, fries and ice cream. It has two employees Anish and Bani who prepare the items ordered by the clients. Preparation time is 10 minutes for a burger and 2 minutes for an order of ice cream. An employee can prepare only one of these items at a time. The fries are prepared in an automatic fryer which can prepare up to 3 portions of fries at a time, and takes 5 minutes irrespective of the number of portions. The fryer does not need an employee to constantly attend to it, and we can ignore the time taken by an employee to start and stop the fryer; thus an employee can be engaged in preparing other items while the frying is on. However fries cannot be prepared in anticipation of future orders.
Healthy Bites wishes to serve the order as early as possible. The individual items in any order are served as and when ready; however, the order is considered to be completely served only when all the items of that order are served.
The table below gives the orders of three clients and the times at which they placed their orders:
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Assume that only one client’s order can be processed at any given point of time. So, Anish or Bani cannot start preparing a new order while a pervious order is being prepared. At what time is the order placed by Client 3 completely served?
Answer & solution
- A
10 : 35
- B
10 : 22
10 : 25
- D
10 : 17
As per the answer to the previous question order of client 1 will be completed by 10.10.
For 2nd client:
Since order of only one client can be processed at a time, the 2 portions of fries can be prepared by 10:15 and 1 order of ice-cream by 10:12.
So the order of client 2 will be complete by 10:15.
For 3rd client:
Now, the burger preparation of client 3 can be completed by 10:25 and the preparation of fries can be completed by 10:20.
So, client 3 will be completely served by 10:25.
Hence, option (c).