# Question: You and several friends are about to prepare a lasagna

You and several friends are about to prepare a lasagna dinner. The tasks to be performed, their immediate predecessors, and their estimated durations are as follows:

*There is none in the refrigerator.

(a) Construct the project network for preparing this dinner.

(b) Find all the paths and path lengths through this project network. Which of these paths is a critical path?

(c) Find the earliest start time and earliest finish time for each activity.

(d) Find the latest start time and latest finish time for each activity.

(e) Find the slack for each activity. Which of the paths is a critical path?

(f) Because of a phone call, you were interrupted for 6 minutes when you should have been cutting the onions and mushrooms. By how much will the dinner be delayed? If you use your food processor, which reduces the cutting time from 7 to 2 minutes, will the dinner still be delayed?

*There is none in the refrigerator.

(a) Construct the project network for preparing this dinner.

(b) Find all the paths and path lengths through this project network. Which of these paths is a critical path?

(c) Find the earliest start time and earliest finish time for each activity.

(d) Find the latest start time and latest finish time for each activity.

(e) Find the slack for each activity. Which of the paths is a critical path?

(f) Because of a phone call, you were interrupted for 6 minutes when you should have been cutting the onions and mushrooms. By how much will the dinner be delayed? If you use your food processor, which reduces the cutting time from 7 to 2 minutes, will the dinner still be delayed?

## Relevant Questions

Suppose that the air freight charge per ton between seven particular locations is given by the following table (except where no direct air freight service is available): A certain corporation must ship a certain perishable ...Consider the Woodstock Company multitime period problem described in Sec. 23.4 (see Table 23.10). Suppose that the company has decided to expand its operation to also buy, store, and sell plywood in this warehouse. For the ...Use the decomposition principle to solve the Wyndor Glass Co. problem presented in Sec. 3.1. A transistor radio operates on two 1 ½ volt batteries, so that nominally it operates on 3 volts. Suppose the actual voltage of a single new battery is normally distributed with mean 1 ½ volts and variance 0.0625. The radio ...Let X be a discrete random variable, with probability Distribution And P(X = x2) = ¾. (a) Determine x1 and x2, such that E(X) = 0 and variance (X) = 10. (b) Sketch the CDF of X.Post your question