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The infection of manufacturing lines with bacteria is a serious safety

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The infection of manufacturing lines with bacteria is a serious safety  [#permalink]

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New post 19 Jul 2018, 20:26
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The infection of manufacturing lines with bacteria is a serious safety risk that many food manufacturers spend millions of dollars per year to prevent. Because sterilizing stainless steel containers with chemical sterilizers is expensive to do every day, some analysts have recommended installing UV lamps that can effectively sterilize the stainless steel containers without affecting food production. The lamp costs the same as one month’s supply of chemical sterilizers to sterilize the same number of stainless steel containers.

In deciding whether the change would be effective in decreasing the cost of food sterilization, it would be most useful to determine which of the following?


A. Whether food distributors should also sterilize their trucks in order to keep food safe.

B. Whether the UV lamps tend to be effective for longer than a single month.

C. Whether stainless steel containers are more prone to contamination than are other types of containers.

D. Whether appropriate cooking practices can effectively destroy bacteria once food has been shipped to consumers.

E. Whether UV radiation is harmful to workers who come in contact with it.

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The infection of manufacturing lines with bacteria is a serious safety  [#permalink]

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New post 19 Jul 2018, 21:02
Bunuel wrote:
The infection of manufacturing lines with bacteria is a serious safety risk that many food manufacturers spend millions of dollars per year to prevent. Because sterilizing stainless steel containers with chemical sterilizers is expensive to do every day, some analysts have recommended installing UV lamps that can effectively sterilize the stainless steel containers without affecting food production. The lamp costs the same as one month’s supply of chemical sterilizers to sterilize the same number of stainless steel containers.

In deciding whether the change would be effective in decreasing the cost of food sterilization, it would be most useful to determine which of the following?


A. Whether food distributors should also sterilize their trucks in order to keep food safe.

B. Whether the UV lamps tend to be effective for longer than a single month.

C. Whether stainless steel containers are more prone to contamination than are other types of containers.

D. Whether appropriate cooking practices can effectively destroy bacteria once food has been shipped to consumers.

E. Whether UV radiation is harmful to workers who come in contact with it.


A. Whether food distributors should also sterilize their trucks in order to keep food safe. - Wrong- Not Relevant

B. Whether the UV lamps tend to be effective for longer than a single month. -CORRECT - It's mentioned that cost of UV method is as costly as the cost of chemical sterilisation for 1 month. So, if UV is effective for more than a month then only, it would be a better alternative.

C. Whether stainless steel containers are more prone to contamination than are other types of containers. -Wrong- Not Relevant

D. Whether appropriate cooking practices can effectively destroy bacteria once food has been shipped to consumers. - Wrong- Not Relevant - We are talking about the two methods. Not needed a third factor.

E. Whether UV radiation is harmful to workers who come in contact with it. Wrong- Not Relevant -

B is the answer.
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Re: The infection of manufacturing lines with bacteria is a serious safety  [#permalink]

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New post 19 Jul 2018, 21:38
The infection of manufacturing lines with bacteria is a serious safety risk that many food manufacturers spend millions of dollars per year to prevent. Because sterilizing stainless steel containers with chemical sterilizers is expensive to do every day, some analysts have recommended installing UV lamps that can effectively sterilize the stainless steel containers without affecting food production. The lamp costs the same as one month’s supply of chemical sterilizers to sterilize the same number of stainless steel containers.

In deciding whether the change would be effective in decreasing the cost of food sterilization, it would be most useful to determine which of the following?
Type - evaluate
Boil it down - Because sterilizing stainless steel containers with chemical sterilizers is expensive to do every day, some analysts have recommended installing UV lamps that can effectively sterilize the stainless steel containers without affecting food production.


A. Whether food distributors should also sterilize their trucks in order to keep food safe. -- Out of scope

B. Whether the UV lamps tend to be effective for longer than a single month. -- Correct - If UV lamps tend to effective for longer than a month -- then it will be profitable else it won't

C. Whether stainless steel containers are more prone to contamination than are other types of containers. - Irrelevant

D. Whether appropriate cooking practices can effectively destroy bacteria once food has been shipped to consumers. - Irrelevant

E. Whether UV radiation is harmful to workers who come in contact with it. - Irrelevant

Answer B
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Re: The infection of manufacturing lines with bacteria is a serious safety  [#permalink]

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New post 20 Jul 2018, 00:03
The logical way to think in order to decrease the cost of food sterilization is to make sure the lamp works longer than do chemical sterilizers.
...The lamp costs the same as one month’s supply of chemical sterilizers to...

Bunuel wrote:
The infection of manufacturing lines with bacteria is a serious safety risk that many food manufacturers spend millions of dollars per year to prevent. Because sterilizing stainless steel containers with chemical sterilizers is expensive to do every day, some analysts have recommended installing UV lamps that can effectively sterilize the stainless steel containers without affecting food production. The lamp costs the same as one month’s supply of chemical sterilizers to sterilize the same number of stainless steel containers.

In deciding whether the change would be effective in decreasing the cost of food sterilization, it would be most useful to determine which of the following?

B. Whether the UV lamps tend to be effective for longer than a single month.
Precisely gives us what we logically inferred above.

All other answer choices mention nothing about the cost decrease. The question is concerned only with the decreased costs.

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Re: The infection of manufacturing lines with bacteria is a serious safety  [#permalink]

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New post 20 Jul 2018, 02:08
Bunuel wrote:
The infection of manufacturing lines with bacteria is a serious safety risk that many food manufacturers spend millions of dollars per year to prevent. Because sterilizing stainless steel containers with chemical sterilizers is expensive to do every day, some analysts have recommended installing UV lamps that can effectively sterilize the stainless steel containers without affecting food production. The lamp costs the same as one month’s supply of chemical sterilizers to sterilize the same number of stainless steel containers.


Pre-thinking :
Since, sterilizing stainless steel containers with chemical sterilizers is expensive, some analysts have recommended installing UV lamps that are efficient in sterilizing the stainless steel containers and costs almost the same as one month’s supply of chemical sterilizers. But what about the durability ? What if UV lamps do not last even a month long ?

B. Whether the UV lamps tend to be effective for longer than a single month. --> Correct, matches our pre-thinking

Hence, B.
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Re: The infection of manufacturing lines with bacteria is a serious safety  [#permalink]

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New post 22 Jul 2018, 08:21
Bunuel wrote:
The infection of manufacturing lines with bacteria is a serious safety risk that many food manufacturers spend millions of dollars per year to prevent. Because sterilizing stainless steel containers with chemical sterilizers is expensive to do every day, some analysts have recommended installing UV lamps that can effectively sterilize the stainless steel containers without affecting food production. The lamp costs the same as one month’s supply of chemical sterilizers to sterilize the same number of stainless steel containers.

In deciding whether the change would be effective in decreasing the cost of food sterilization, it would be most useful to determine which of the following?


A. Whether food distributors should also sterilize their trucks in order to keep food safe.

B. Whether the UV lamps tend to be effective for longer than a single month.

C. Whether stainless steel containers are more prone to contamination than are other types of containers.

D. Whether appropriate cooking practices can effectively destroy bacteria once food has been shipped to consumers.

E. Whether UV radiation is harmful to workers who come in contact with it.


VERITAS PREP OFFICIAL SOLUTION:



For any Useful to Evaluate question, you should look for the piece of information that, depending on the answer to the additional information, would exploit a gap between the premise and the suggested course of action. To do that, you first need to understand the stimulus itself.

The stimulus states that bacterial infection is a dangerous problem for manufacturers. Chemical sterilizers are also very expensive, so analysts have suggested using UV lamps to do the same job since a single UV lamp costs the same as a month's worth of chemical sterilizers that could be used to sterilize the same number of vats. You are then asked what would be useful in figuring out whether the suggestion would help determine whether the change would decrease the cost of food sterilization. (The key here is that it saves money - not that it's safer or more effective.)

The only place that the stimulus discusses cost is where it states that a lamp costs the same as a month of chemical sterilizers in order to sterilize the same number of vats. If the lamps last longer than a month, then they will fulfill the requirement since the lamps will therefore be cheaper than chemical sterilizers. However, if the lamps only last a month (or less) then the lamps will be either the same cost or more expensive than the chemical sterilizers. Therefore the correct answer must be (B).

Among the other answers, you can eliminate (A) and (D) since food safety and other points on the production chain aren't under discussion. Similarly, (E) can be eliminated because worker safety is not a consideration within the argument - only cost is considered. Choice (C) can also be eliminated since the analyst is considering replacing the chemical sterilizers and does not discuss the possibility of using a different type of container.
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New to the Math Forum?
Please read this: Ultimate GMAT Quantitative Megathread | All You Need for Quant | PLEASE READ AND FOLLOW: 12 Rules for Posting!!!

Resources:
GMAT Math Book | Triangles | Polygons | Coordinate Geometry | Factorials | Circles | Number Theory | Remainders; 8. Overlapping Sets | PDF of Math Book; 10. Remainders | GMAT Prep Software Analysis | SEVEN SAMURAI OF 2012 (BEST DISCUSSIONS) | Tricky questions from previous years.

Collection of Questions:
PS: 1. Tough and Tricky questions; 2. Hard questions; 3. Hard questions part 2; 4. Standard deviation; 5. Tough Problem Solving Questions With Solutions; 6. Probability and Combinations Questions With Solutions; 7 Tough and tricky exponents and roots questions; 8 12 Easy Pieces (or not?); 9 Bakers' Dozen; 10 Algebra set. ,11 Mixed Questions, 12 Fresh Meat

DS: 1. DS tough questions; 2. DS tough questions part 2; 3. DS tough questions part 3; 4. DS Standard deviation; 5. Inequalities; 6. 700+ GMAT Data Sufficiency Questions With Explanations; 7 Tough and tricky exponents and roots questions; 8 The Discreet Charm of the DS; 9 Devil's Dozen!!!; 10 Number Properties set., 11 New DS set.


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Re: The infection of manufacturing lines with bacteria is a serious safety  [#permalink]

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New post 14 Aug 2018, 08:13
Bunuel wrote:
The infection of manufacturing lines with bacteria is a serious safety risk that many food manufacturers spend millions of dollars per year to prevent. Because sterilizing stainless steel containers with chemical sterilizers is expensive to do every day, some analysts have recommended installing UV lamps that can effectively sterilize the stainless steel containers without affecting food production. The lamp costs the same as one month’s supply of chemical sterilizers to sterilize the same number of stainless steel containers.

In deciding whether the change would be effective in decreasing the cost of food sterilization, it would be most useful to determine which of the following?


A. Whether food distributors should also sterilize their trucks in order to keep food safe.

B. Whether the UV lamps tend to be effective for longer than a single month.

C. Whether stainless steel containers are more prone to contamination than are other types of containers.

D. Whether appropriate cooking practices can effectively destroy bacteria once food has been shipped to consumers.

E. Whether UV radiation is harmful to workers who come in contact with it.


My choice is B as it clearly states the difference between expense in one month of UV lamps and of sterilization.
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Re: The infection of manufacturing lines with bacteria is a serious safety &nbs [#permalink] 14 Aug 2018, 08:13
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