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The table above shows the morning schedule for train X.

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The table above shows the morning schedule for train X.

by BTGmoderatorLU » Tue Oct 23, 2018 4:12 pm

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Source: GMAT Prep

DAILY TRAIN SCHEDULE
Train X
Scheduled Departure Station S at 7:08 (EST)*
Scheduled Arrival Station T at 8:10 (EST)

The table above shows the morning schedule for train X. If Juan took train X on Monday morning, did he arrive at station T on schedule?

1. Juan arrived at station T on Monday morning 1 hour and 2 minutes after he left station S.
2. Juan arrived at his office at 8:30 (EST) on Monday morning, which was 20 minutes after he arrived at station T.

The OA is B.
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Source: — Data Sufficiency |

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by Jay@ManhattanReview » Tue Oct 23, 2018 10:24 pm

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00:00

Your Answer

A

B

C

D

E

Global Stats

BTGmoderatorLU wrote:Source: GMAT Prep

DAILY TRAIN SCHEDULE
Train X
Scheduled Departure Station S at 7:08 (EST)*
Scheduled Arrival Station T at 8:10 (EST)

The table above shows the morning schedule for train X. If Juan took train X on Monday morning, did he arrive at station T on schedule?

1. Juan arrived at station T on Monday morning 1 hour and 2 minutes after he left station S.
2. Juan arrived at his office at 8:30 (EST) on Monday morning, which was 20 minutes after he arrived at station T.

The OA is B.
From the given data about Train X, we know that Train X takes 8:10 - 7:08 = 1 hour and 2 minutes to reach Station T.

Question: Did Juan arrive at station T on schedule?

Question rephrased: Did Train X arrived at Station T at 8:10?

Let's take each statement one by one.

1. Juan arrived at station T on Monday morning 1 hour and 2 minutes after he left station S.

Not necessarily true that Train X arrived Station T at 8:10. It is possible that the train started late from Station S, taking 1:02 minutes to reach Station T; thus, reached after 8:10.

2. Juan arrived at his office at 8:30 (EST) on Monday morning, which was 20 minutes after he arrived at station T.

Since Juan took 20 minutes after he arrived at station T to reach the office, he would have reached Station T by 8:30 - 20 = 8:10. Sufficient.

The correct answer: [spoiler][/spoiler]

Hope this helps!

-Jay
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