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16 Nov 2023, 02:30
Kudos
Bookmarks
E
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
5%
(low)
Question Stats:
96% (00:59) correct
4%
(01:13)
wrong
based on 56
sessions
History
Date
Time
Result
Not Attempted Yet
How far did a certain athlete run this morning?
(1) The athlete ran for 48 minutes.
(2) The athlete covered twice as much distance during the first half of the time she spent running as she did during the second half of the time she spent running.
(1) The athlete ran for 48 minutes.
(2) The athlete covered twice as much distance during the first half of the time she spent running as she did during the second half of the time she spent running.
16 Nov 2023, 03:51
Kudos
Bookmarks
In order to ascertain the distance of the athlete, we typically need time and speed because distance = time * speed.
(1) Only
No info on speed.
Not sufficient
(2) Only
No info on time
Not sufficient
(1)(2) Together
We only know that the speed for the first 24 minutes is twice that for the second 24 minutes.
Because there are myriad possibilities, we still cannot answer the distance question.
Not sufficient
The answer is thus (E).
(1) Only
No info on speed.
Not sufficient
(2) Only
No info on time
Not sufficient
(1)(2) Together
We only know that the speed for the first 24 minutes is twice that for the second 24 minutes.
Because there are myriad possibilities, we still cannot answer the distance question.
Not sufficient
The answer is thus (E).
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