Oilers/Plant Tenders (HHC) Civil Service Practice Exam

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If 200 feet of a certain size pipe weighs 300 lbs., how much will 60 feet of the same pipe weigh?

90 lbs.
100 lbs.
120 lbs.
80 lbs.

The correct answer is: 100 lbs.

To determine the weight of 60 feet of the same size pipe, we start by establishing the weight per foot of the pipe. If 200 feet of this pipe weighs 300 lbs, we can calculate the weight per foot by dividing the total weight by the total length: 300 lbs / 200 feet = 1.5 lbs per foot. Now we can use this weight per foot to find the weight of 60 feet of the pipe: 1.5 lbs per foot × 60 feet = 90 lbs. Since the correct answer is based on this calculation, it indicates a misunderstanding in the choice provided. The weight of 60 feet of the same pipe is actually 90 lbs, which corresponds to the premise of proportionality in weight based on length.