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It takes Amy between 6 and 7 minutes to grill a steak, and she can only grill one steak at a time. She does not need to

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by BTGmoderatorDC » Fri Sep 25, 2020 5:08 pm

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It takes Amy between 6 and 7 minutes to grill a steak, and she can only grill one steak at a time. She does not need to take breaks between steaks. Can Amy finish grilling all the steaks needed for her party before her guests arrive?

(1) Amy needs to grill four steaks for her party.

(2) Amy's guests will arrive in half an hour.


OA C

Source: Manhattan Prep
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Source: — Data Sufficiency |
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Re: It takes Amy between 6 and 7 minutes to grill a steak, and she can only grill one steak at a time. She does not need

by AAPL » Sat Sep 26, 2020 12:17 pm
BTGmoderatorDC wrote: ↑
Fri Sep 25, 2020 5:08 pm
 It takes Amy between 6 and 7 minutes to grill a steak, and she can only grill one steak at a time. She does not need to take breaks between steaks. Can Amy finish grilling all the steaks needed for her party before her guests arrive?

(1) Amy needs to grill four steaks for her party.

(2) Amy's guests will arrive in half an hour.


OA C

Source: Manhattan Prep
Statement 1:
We don't know when the guests will arrive. Not Sufficient \(\Large{\color{red}\chi}\)

Statement 2:
We don't know how many steaks are needed for the party. Not Sufficient \(\Large{\color{red}\chi}\)

Combining both the statements we can get, it would take Amy \(6\) mins/steak \(\cdot 4\) steaks \(= 24\) mins, and at worst, \(7\) mins/steak \(\cdot 4\) steaks \(= 28\) mins to grill \(4\) steaks.

Therefore, she will finish grilling all the \(4\) steaks before her guests arrive in \(30\) mins. Sufficient \(\Large{\color{green}\checkmark}\)

Hence, C
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