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14 Oct 2013, 08:47
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B
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Difficulty:
35%
(medium)
Question Stats:
74% (02:33) correct
26%
(02:33)
wrong
based on 2609
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On a trolley ride around an amusement park, a child travelled from one signpost to a second signpost at a constant speed of 125 meters per minute. Was the distance that the child travelled from the first signpost to the second signpost greater than 0.8km? (1km = 1,000meters)
1) It took less than 450 seconds for the child to travel from the first signpost to the second signpost
2) It took more than 400 seconds for the child to travel from the first signpost to the second signpost
1) It took less than 450 seconds for the child to travel from the first signpost to the second signpost
2) It took more than 400 seconds for the child to travel from the first signpost to the second signpost
14 Oct 2013, 09:01
Kudos
Bookmarks
On a trolley ride around an amusement park, a child travelled from one signpost to a second signpost at a constant speed of 125 meters per minute. Was the distance that the child travelled from the first signpost to the second signpost greater than 0.8km? (1km = 1,000meters)
(distance) = (time)*(rate)
800 = (time)*125
(time) = 800/125 = 6.4 minutes = 384 seconds.
So, the question basically asks whether the time taken was greater than 384 seconds.
1) It took less than 450 seconds for the child to travel from the first signpost to the second signpost. Not sufficient.
2) It took more than 400 seconds for the child to travel from the first signpost to the second signpost. Sufficient.
Answer: B.
(distance) = (time)*(rate)
800 = (time)*125
(time) = 800/125 = 6.4 minutes = 384 seconds.
So, the question basically asks whether the time taken was greater than 384 seconds.
1) It took less than 450 seconds for the child to travel from the first signpost to the second signpost. Not sufficient.
2) It took more than 400 seconds for the child to travel from the first signpost to the second signpost. Sufficient.
Answer: B.
14 Oct 2013, 09:02
Kudos
Bookmarks
Bunuel
On a trolley ride around an amusement park, a child travelled from one signpost to a second signpost at a constant speed of 125 meters per minute. Was the distance that the child travelled from the first signpost to the second signpost greater than 0.8km? (1km = 1,000meters)
(distance) = (time)*(rate)
800 = (time)*125
(time) = 800/125 = 6.4 minutes = 384 seconds.
So, the question basically asks whether the time taken was greater than 384 seconds.
1) It took less than 450 seconds for the child to travel from the first signpost to the second signpost. Not sufficient.
2) It took more than 400 seconds for the child to travel from the first signpost to the second signpost. Sufficient.
Answer: B.
(distance) = (time)*(rate)
800 = (time)*125
(time) = 800/125 = 6.4 minutes = 384 seconds.
So, the question basically asks whether the time taken was greater than 384 seconds.
1) It took less than 450 seconds for the child to travel from the first signpost to the second signpost. Not sufficient.
2) It took more than 400 seconds for the child to travel from the first signpost to the second signpost. Sufficient.
Answer: B.
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Hope this helps.
