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# If the speed of x meters per second is equivalent to the

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Intern
Joined: 21 Sep 2006
Posts: 43
Followers: 0

Kudos [?]: 8 [0], given: 0

If the speed of x meters per second is equivalent to the [#permalink]  14 Oct 2006, 14:52
This topic is locked. If you want to discuss this question please re-post it in the respective forum.

If the speed of x meters per second is equivalent to the speed of y kilometers per hour, what is y in terms of x? (1 kilometer = 1,000 meters)

a) 5x/18

b) 6x/5

c) 18x/5

d) 60x

e) 3,600,000x
Manager
Joined: 08 Jul 2006
Posts: 89
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Well,

x meters = 1 second

In 1hr or 3600s, x will be: 3600x

3600x = 1hr
3600x/1000 will be y km/hr

or 18x/5.

Hope this makes it clear, you may also pick numbers.
Senior Manager
Joined: 30 Aug 2006
Posts: 374
Followers: 3

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Yep just times it up

1mps
60mpm
3600mph
3.6kph

so 15/8
Intern
Joined: 21 Sep 2006
Posts: 43
Followers: 0

Kudos [?]: 8 [0], given: 0

londonluddite wrote:
Yep just times it up

1mps
60mpm
3600mph
3.6kph

so 15/8

Correct answer is 18x/5. Thanks for the help guys!
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