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E
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Difficulty:
55%
(hard)
Question Stats:
49% (00:59) correct
51%
(01:00)
wrong
based on 574
sessions
History
Date
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Not Attempted Yet
12 Days of Christmas 🎅 GMAT Competition with Lots of Questions & Fun
On Christmas Eve, Santa began wrapping presents from his box. He started wrapping the first present at 1:00 p.m. and finished wrapping the last one at 11:00 p.m. Did he wrap more than 120 presents during that period?
(1) During that period, Santa was interrupted three times by visits from reindeer needing attention.
(2) Santa's average rate while he was wrapping was 15 presents per hour.
On Christmas Eve, Santa began wrapping presents from his box. He started wrapping the first present at 1:00 p.m. and finished wrapping the last one at 11:00 p.m. Did he wrap more than 120 presents during that period?
(1) During that period, Santa was interrupted three times by visits from reindeer needing attention.
(2) Santa's average rate while he was wrapping was 15 presents per hour.
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GMAT Club Official Explanation:
On Christmas Eve, Santa began wrapping presents from his box. He started wrapping the first present at 1:00 p.m. and finished wrapping the last one at 11:00 p.m. Did he wrap more than 120 presents during that period?
(1) During that period, Santa was interrupted three times by visits from reindeer needing attention.
This statement does not give us any useful piece of information. Not sufficient.
(2) Santa's average rate while he was wrapping was 15 presents per hour.
It's tempting to say that Santa was wrapping for 10 hours and thus he wrapped 10*15 = 150 presents. However, it's important to consider that the question specifically refers to the 'average rate WHILE he was wrapping.' The word 'while' indicates that Santa's wrapping rate applies only during the actual wrapping. The notion that there was no interruption would be an unsupported assumption. Hence we don't know how long Santa was actually wrapping and cannot calculate the number of presents he wrapped. Not sufficient.
(1)+(2) We still don't know the exact time of the interruptions, and given the unknown duration of the interruptions, we can't determine the actual time spent wrapping. Not sufficient.
Answer: E
General Discussion
11 Dec 2023, 07:08
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Bunuel
(1) During that period, Santa was interrupted three times by visits from reindeer needing attention.
No information on how long each interruption was. Also, no information is present on the rate at which Santa wraps the gifts. The statement alone is not sufficient.
(2) Santa's average rate while he was wrapping was 15 presents per hour.
This statement is also not sufficient as we do not know if Santa worked for the entire time. Hence, eliminate B.
Statement (1) + (2)
The interruption duration is not know to us. Hence, the answer to this question is E.
IMO E
