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During the construction of a recent office building, your company's masonry crew installed 60 linear feet of an 8-foot-high decorative masonry wall in two days. The crew consisted of two masons and one helper, working eight hours per day. What is the productivity rate expressed in square feet per work hour?

A) 0.05
B) 50
C) 10
D) 0.10

Answer :

The productivity rate expressed in square feet per work hour is 10 square feet per work hour. Option C is the correct answer.

To calculate the productivity rate, we need to find the total square feet of the masonry wall installed and divide it by the total number of work hours.

Given:

- Length of the masonry wall: 60 linear feet

- Height of the masonry wall: 8 feet

- Number of masons: 2

- Number of helpers: 1

- Number of work days: 2

- Number of work hours per day: 8

Step 1: Calculate the total square feet of the masonry wall installed.

Total square feet = Length × Height = 60 feet × 8 feet = 480 square feet

Step 2: Calculate the total number of work hours.

Total work hours = Number of workers × Number of work days × Number of work hours per day

Total work hours = (2 masons + 1 helper) × 2 days × 8 hours per day = 48 work hours

Step 3: Calculate the productivity rate.

Productivity rate = Total square feet / Total work hours

Productivity rate = 480 square feet / 48 work hours = 10 square feet per work hour

Therefore, the productivity rate expressed in square feet per work hour is 10 square feet per work hour. Option C is the correct answer.

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Rewritten by : Barada