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How many seconds will it take for a car that is traveling at

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Manager
Manager
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Joined: 06 Nov 2008
Posts: 53

Kudos [?]: 6 [0], given: 0

How many seconds will it take for a car that is traveling at [#permalink]

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New post 17 Nov 2008, 08:41
This topic is locked. If you want to discuss this question please re-post it in the respective forum.

How many seconds will it take for a car that is traveling
at a constant rate of 45 miles per hour to travel a
distance of 220 yards? (1 mile=1,760 yards)

A. 8
B. 9
C. 10
D. 11
E. 12

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Intern
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Joined: 31 Oct 2008
Posts: 16

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Re: distance---25 [#permalink]

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New post 17 Nov 2008, 18:44
Agree with 10.

First convert the distance to miles
220 yard * ( 1 mile / 1760 yard) = 1/8 mile

Then covert the speed to per second
45 mile / hour * (1 hour / 3600 seconds) = 45 mile / 3600 seconds

Time it takes = distance / speed
= (1/8 mile) / (45mile / 3600 seconds)
= (1/8) * (3600/45) seconds
= 10 seconds

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Re: distance---25   [#permalink] 17 Nov 2008, 18:44
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How many seconds will it take for a car that is traveling at

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