Looking to decrease the hotels average annual expenditure of water

Question

Looking to decrease the hotel’s average annual expenditure of water, the General Manager of the Dauphin Hotel decided to replace the hotel’s current showerheads with low-flow water-efficient showerheads, as the current showerheads wear out. Compared to standard showerheads, low-flow water-efficient showerheads consume less water and are not any more expensive. Furthermore, the costs of converting current water fixtures to work with low-flow water-efficient showerheads are negligible.

Which of the following would it be most useful to know in determining whether switching to low-flow water-efficient showerheads would likely help minimize the Dauphin Hotel’s yearly maintenance costs?

A. Whether the General Manager plans to add more rooms to the Dauphin Hotel, necessitating the use of more showerheads
B. Whether any other hotels switched from the showerheads currently in use to any type of showerhead except the low-flow water-efficient ones
C. Whether the wholesaler from which the Dauphin Hotel currently buys showerheads also sells low-flow water-efficient ones
D. Whether the predicted longevity of low-flow water-efficient showerheads at least equals that of the showerheads currently in use
E. Whether the workmen who replace showerheads at the Dauphin Hotel know how to convert the existing fixtures so as to work with low-flow water-efficient showerheads

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vasu1104 · Answer

plan - decrease average annual expenditure of water with low flow water efficient showerheads.
reason- they consume less water and are not expensive.
cost of conversion is also negligible.

A adding more rooms wont matter much as it will only increase water utility bill.reject
B this is completely irrelevant and out of scope.
C who cares. they can still find someone else to buy this new version. toss it out.
D if longevity is same as old one then it make sense to install the new ones as the predicted outcome will be achieved but if its not same then they need to change every now and then and that will increase their expense. so this will be useful to evaluate the outcome.
E who cares. they can hire someone else to do the job. reject.

Ans D

Dereno · Answer

The general manager of Dauphin Hotel plans to reduce the average annual expenditure of water. To achieve it, the shower heads currently in use are to be replaced with low flow water efficient shower heads.

The current shower heads have wear out. So, replacement is down the lane soon.

Low flow water efficient shower heads - consume less water, and not expensive.

Furthermore, costs incurred to change the current water pipes is negligible.

Which of the following would it be most useful to know in determining whether switching to low-flow water-efficient showerheads would likely help  minimize  the Dauphin Hotel’s  yearly maintenance costs?

A. Whether the General Manager plans to add more rooms to the Dauphin Hotel, necessitating the use of more shower heads.

Adding more rooms is not a cause of concern for the replacement of pipes in question. The issue is whether low water efficient water pipes are good or not. Hence, this option fails to address the core issue. Wrong.

B. Whether any other hotels switched from the shower heads currently in use to any type of shower head except the low-flow water-efficient ones.

This is an out of scope answer option, as the context shifts from Dauphin hotel to another hotel. If implementing a new dish or new aspect to enhance ambience is being studied, then a cross hotel study can be fruitful and beneficial. But, in this context it’s completely wrong.

C. Whether the wholesaler from which the Dauphin Hotel currently buys shower heads also sells low-flow water-efficient ones.

This makes there is paucity in sellers of new product, or the hotel is being restrained from making external purchases. This contradicts the passage, as cost of purchase and its conversion cost is also low. Hence, Wrong.

D. Whether the predicted longevity of low-flow water-efficient shower heads at least equals that of the shower heads currently in use.

This is the correct answer. As it questions, the longevity of the new shower heads compared to the older ones. If the longevity is high, then maintenance cost eventually drops down, which addresses the core problem of yearly maintenance costs.

E. Whether the workmen who replace shower heads at the Dauphin Hotel know how to convert the existing fixtures so as to work with low-flow water-efficient shower heads.

This questions the technical prowess of the workmen employed to replace the shower heads, if the workman is not efficient, the hotel may resort to employing skilled personnel in changing the water heads with new ones. There are many ways to make the ends meet. Moreover, the conversion cost is also negligible. Hence, wrong.

Option D

CLStudyAbroad · Answer

Please find the response below: 
 
The question wants to know if switching to low-flow showerheads will actually cut yearly maintenance costs. 
 
Here’s what we know: low-flow showerheads use less water, they don’t cost more than regular ones, and it barely costs anything to install. Sounds good so far. But hang on—maintenance costs aren’t just about how much you pay up front. They also depend on how often you have to fix or replace the showerheads. 
 
That’s why answer (D) matters most. It asks if the low-flow models last at least as long as the ones you already have. If they do, maintenance costs probably go down, since you’re not replacing them any more often. But if they wear out faster, you end up spending more on replacements, and your maintenance costs could actually go up. 
 
So, (D) gets right to the heart of the issue: will switching actually save money in the long run? 
 
The other options don’t really help: 
 
(A) Adding more rooms changes total costs, but doesn’t tell you if low-flow showerheads are cheaper to maintain per shower. 
 
(B) Other types of showerheads aren’t the point here. 
 
(C) Whether suppliers can provide enough showerheads doesn’t change maintenance costs. 
 
(E) Workers’ skills don’t matter much, since it’s quick and easy to swap out the heads. 
 
Bottom line: maintenance costs come from repairs and replacements over time. The most important thing you don’t know yet is how long these new showerheads will actually last.

egmat · Answer

Notice the  shift  between the stimulus and the question stem.
The stimulus discusses reducing  water expenditure , but the question asks about minimizing  yearly maintenance costs .
 Maintenance costs  = costs of replacing/repairing equipment over time.

Why D is Correct: 
If low-flow showerheads  don't last as long  as the current ones, the hotel would need to replace them  more frequently .
More replacements =  higher maintenance costs 
This could  wipe out any savings  from reduced water usage.

The Evaluate Test: 
- If longevity is  equal or better  → maintenance costs stay same or decrease →  plan works 
- If longevity is  worse  → more frequent replacements → plan fails

Why Other Options Fail: 
-  (A)  Adding rooms is about expansion, not comparing the two showerhead types
-  (B)  What other hotels do doesn't affect Dauphin's specific costs
-  (C)  Where to buy is logistics, not a factor in the cost comparison
-  (E)  The stimulus already tells us conversion costs are "negligible"

Answer: D

ExpertsGlobal5 · Answer

Video explanation:

https://www.youtube.com/watch?v=nKc91qKjVv4

Looking to decrease the hotels average annual expenditure of water

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