Plugging in Problem?

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Sandman: Senior | Next Rank: 100 Posts; Posts: 48; Joined: Wed Mar 05, 2008 10:21 am

by Sandman » Wed Aug 13, 2008 11:39 pm

3. If the speed of a meters per second is equivalent to the speed of b kms per hour, then what is b in terms of a?

a. 5a/18
b. 6a/5
c. 18a/5
4. 60a
5. 3600000a

Can anyone please show me how to solve this question by plugging in?? or is there any other easier approach to solve a problem like this??

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Source: Beat The GMAT — Problem Solving | Wed Aug 13, 2008 11:39 pm

vishubn: Legendary Member; Posts: 574; Joined: Sun Jun 01, 2008 8:48 am; Location: Bangalore; Thanked: 28 times

by vishubn » Thu Aug 14, 2008 12:15 am

a m/s = b km/hr
-->a m/s = b*1000m/1*60*60
b=a*60*60/1000
b=18a/5

hope it helps
Vishu

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Sandman: Senior | Next Rank: 100 Posts; Posts: 48; Joined: Wed Mar 05, 2008 10:21 am

by Sandman » Thu Aug 14, 2008 12:26 am

Thanks Visnu...i figured it out now...i made a simple calculation mistake..

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