document.write( "Question 844862: A car leaves a highway rest are 1 and a half hours after a truck. Both are traveling in the same direction. In how many hours will the car pass the truck, if their respective rates are 90 and 60 kph? \n" ); document.write( "
Algebra.Com's Answer #508953 by richwmiller(17219)\"\" \"About 
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the truck is going 60 mph . In 1.5 hours (60*1.5) it goes 90 miles
\n" ); document.write( "The car gains on the truck at 30 mph
\n" ); document.write( "90/30=3\r
\n" ); document.write( "\n" ); document.write( "It will take 3 hours for the car to pass the truck.\r
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