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QOTD: Shipping Clerk: The five specially ordered shipments

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Joined: 19 Mar 2012
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Kudos [?]: 16956 [0], given: 1961

Location: India
GMAT 1: 760 Q50 V42
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QOTD: Shipping Clerk: The five specially ordered shipments [#permalink]

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New post 28 Sep 2017, 11:46
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Verbal Question of The Day: Day 114: Critical Reasoning


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Shipping Clerk: The five specially ordered shipments sent out last week were sent out on Thursday. Last week, all of the shipments that were sent out on Friday consisted entirely of building supplies, and the shipping department then closed for the weekend. Four shipments were sent to Truax Construction last week, only three of which consisted of building supplies.

If the shipping clerk’s statements are true, which of the following must also be true?

A. At least one of the shipments sent to Truax Construction last week was specially ordered.
B. At least one of last week’s specially ordered shipments did not consist of building supplies.
C. At least one of the shipments sent to Truax Construction was not sent out on Thursday of last week.
D. At least one of the shipments that were sent out on Friday of last week was sent to Truax Construction.
E. At least one of the shipments sent to Truax Construction last week was sent out before Friday.

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[Reveal] Spoiler: OA

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QOTD: Shipping Clerk: The five specially ordered shipments [#permalink]

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New post 28 Sep 2017, 11:47
Here's what we know from the statements:

  • Five specially ordered shipments were sent out last week. All five of those shipments were sent out on Thursday of last week. Thus, we know that no special shipments were sent out any other day besides Thursday of last week.
  • "All of the shipments that were sent out on Friday consisted entirely of building supplies." Notice that this does not necessarily mean that building supplies were not sent out on any other day besides Friday. It simply means that there were no other shipments sent out on Friday besides building supply shipments.
  • The shipping department was closed on the weekend.
  • "Four shipments were sent to Truax Construction last week." Three of those four shipments consisted of building supplies.

If all of these statements are true which of the following must be true?

Quote:
A. At least one of the shipments sent to Truax Construction last week was specially ordered.

We know that three of the four shipments sent to Truax Construction consisted of building supplies. Those three shipments could have been sent on Friday, but they also could have been shipped on any other weekday, including Thursday. The fourth shipment also could have been shipped on Thursday (or on any other weekday except for Friday). It is possible that Truax received a special order on Thursday, but we cannot know for sure. Eliminate (A).

Quote:
B. At least one of last week’s specially ordered shipments did not consist of building supplies.

We know that one of the shipments sent to Truax did not consist of building supplies, but we do not know whether that shipment was sent on Thursday and, thus, whether it was a special order. Eliminate (B).

Quote:
C. At least one of the shipments sent to Truax Construction was not sent out on Thursday of last week.

We know that all the shipments sent out on Friday consisted of building supplies. However, we do not know whether building supply shipments were sent out on any other weekday besides Friday. Thus, it is possible that all of Truax's shipments were sent out on Thursday, so choice (C) does not have to be true.

Quote:
D. At least one of the shipments that were sent out on Friday of last week was sent to Truax Construction.

As described for choice (C), it is possible that all of Truax's shipments were sent out on Thursday. Thus, choice (D) does not have to be true.

Quote:
E. At least one of the shipments sent to Truax Construction last week was sent out before Friday.

We know that one of the shipments sent to Truax did not consist of building supplies. Since "all of the shipments that were sent out on Friday consisted entirely of building supplies," we know that one of the shipments sent to Truax was not shipped on Friday. Thus, choice (E) must be true.

Choice (E) is the best answer.
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Re: QOTD: Shipping Clerk: The five specially ordered shipments [#permalink]

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New post 28 Sep 2017, 12:34
My answer: E (Awaiting OA)

Shipping Clerk: The five specially ordered shipments sent out last week were sent out on Thursday. Last week, all of the shipments that were sent out on Friday consisted entirely of building supplies, and the shipping department then closed for the weekend. Four shipments were sent to Truax Construction last week, only three of which consisted of building supplies.

If the shipping clerk’s statements are true, which of the following must also be true?

A. At least one of the shipments sent to Truax Construction last week was specially ordered. -We don't know this from the passage. We are just told that 3 building and 1 other shipment were sent to Traux.
B. At least one of last week’s specially ordered shipments did not consist of building supplies. -We don't know this either. We are NOT told that all the building supplies were shipped on friday. We are just told that on friday all the shipments were building supplies.
C. At least one of the shipments sent to Truax Construction was not sent out on Thursday of last week. -We don't know this either. Maybe all the 4 were sent out on thursday.
D. At least one of the shipments that were sent out on Friday of last week was sent to Truax Construction. -We just know that on friday all the shipments consisted of building supplies. We are not told that all the building supplies were shipped on friday.
E. At least one of the shipments sent to Truax Construction last week was sent out before Friday. -Correct.
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Re: QOTD: Shipping Clerk: The five specially ordered shipments   [#permalink] 28 Sep 2017, 12:34
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QOTD: Shipping Clerk: The five specially ordered shipments

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