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Bunuel, please tag it under GMAT Prep(Focus).

KarishmaB can you please explain this one?
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Bunuel, please tag it under GMAT Prep(Focus).

KarishmaB can you please explain this one?
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Added the tag. Thank you!
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Bunuel
Rather than bringing cash to school to pay for food expenses, Kindergrade School children will now use electronic cards that record students’ purchases so that parents can later be billed. The objective of this new system is to provide children with cash alternatives that cannot profitably be stolen. To ensure that the cards are worthless to thieves, each card will bear its owner’s picture, so staff at cafeteria checkouts can easily identify stolen cards.

Which of the following, if true, would most seriously undermine the ability of the card system to achieve its goal?


A. As a result of the cards’ introduction, the number of students who purchase food from school cafeterias is expected to increase.

B. The replacement of cash with the electronic cards will not allow any reductions in staffing for the checkouts at the schools’ cafeterias.

C. Staff at the cafeteria checkouts know by name many of the students who regularly use the cafeteria, and the cards will bear the owner’s name as well as his or her picture.

D. The cost to the school system of issuing the cards and installing the checkout machines to read them will be covered by the savings arising from no longer needing to handle cash.

E. The companies operating vending machines in the schools are adapting their machines so that the electronic cards can be used for purchases.

Question stem: Which of the following, if true, would most seriously undermine the ability of the card system to achieve its goal?

What is the goal? The objective of this new system is to provide children with cash alternatives that cannot profitably be stolen.

The objective is to provide a system that cannot be stolen and used - how to ensure that the cards will not be stolen and used by others? The cafeteria staff will confirm the identity of the student using the card with the picture on the card. When will this system fail? We need it to fail since we are looking for an option that will undermine the ability of the card system to achieve its goal.

A. As a result of the cards’ introduction, the number of students who purchase food from school cafeterias is expected to increase.

We cannot assume that this will overload the system and the cafeteria people will not be able to do their jobs. Hence not correct.

B. The replacement of cash with the electronic cards will not allow any reductions in staffing for the checkouts at the schools’ cafeterias.

Reduction in staffing is not an aim we are discussing so irrelevant to our argument.

C. Staff at the cafeteria checkouts know by name many of the students who regularly use the cafeteria, and the cards will bear the owner’s name as well as his or her picture.

All the more better. The system should work well then. This is not a reason it will fail.

D. The cost to the school system of issuing the cards and installing the checkout machines to read them will be covered by the savings arising from no longer needing to handle cash.

Well, this is good about the plan too, though irrelevant to our argument. Cost of installing etc is not discussed. We focus on our mentioned aim.

E. The companies operating vending machines in the schools are adapting their machines so that the electronic cards can be used for purchases.

Oh! This means that people can steal others' cards and use them in vending machines, if not in cafeterias because of the staff checking. This does undermine the ability of the new system to achieve its goal. Looks like even with the cards can profitably be stolen.

Answer (E)
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