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Two cars were driven by A and B. They were 580 miles apart [#permalink]

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Updated on: 23 Sep 2012, 08:49

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Difficulty:

5% (low)

Question Stats:

91% (01:11) correct 9% (01:43) wrong based on 206 sessions

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Two cars were driven by A and B. They were 580 miles apart when they started driving towards each other.A's car had traveled at a speed of 20 miles per hour, 4 hours per day for 5 days when it had met B's car. If B had driven 3 hours per day for 5 days, what was B's speed in miles per hour?

Re: Two cars were driven by A and B. They were 580 miles apart [#permalink]

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17 Nov 2014, 12:02

1. At 20mph for 4 hours a day, then driver A was traveling 80 miles per day. When A met with B, A had already traveled 400 miles.

2. This means that driver B had traveled 580-400 = 180 miles upon meeting up with A. B traveled a total of 3 x 5 = 15 hours (3hrs/day for 5 days). 180 miles / 15 hours = 12mph

Re: Two cars were driven by A and B. They were 580 miles apart [#permalink]

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14 Aug 2017, 13:18

ExuberantRahul wrote:

Two cars were driven by A and B. They were 580 miles apart when they started driving towards each other.A's car had traveled at a speed of 20 miles per hour, 4 hours per day for 5 days when it had met B's car. If B had driven 3 hours per day for 5 days, what was B's speed in miles per hour?