document.write( "Question 1136612: Sarah left Minneapolis heading east on the interstate at a speed of 60 mph. Her sister followed her on the same route, leaving three hours later and driving at a rate of 75 mph. How long, in hours, will it take for Sarah's sister to catch up to Sarah? \n" ); document.write( "

Algebra.Com's Answer #754431 by MathTherapy(10552) $\"\"$ $\"About$

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\n" ); document.write( "Sarah left Minneapolis heading east on the interstate at a speed of 60 mph. Her sister followed her on the same route, leaving three hours later and driving at a rate of 75 mph. How long, in hours, will it take for Sarah's sister to catch up to Sarah?
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2 hours, as suggested by someone is WRONG!!! For the sister to take 2 hours, she'd have to be traveling @ 150 mph. 
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document.write( "Isn't that dangerous and illegal? They're not on a racetrack, I'm sure, just the interstate! Not even on the AUTOBAHN can they go that fast!
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document.write( "Even that's VERY HIGH speed on the AUTOBAHN (average speed: 150 km/h or 80 mph)
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document.write( "I hope you realized this and have IGNORED that answer!
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document.write( "Correct answer: 12 hours! \n" );
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