document.write( "Question 877648: a certain journey took 40 min to complete. if half of the distance was travelled at an average speed of 100 km/h and the other half at an average speed of 60 km/h, what was the length of the journey? i tried 180 km/h divided by 2 and then i got lost \n" ); document.write( "

Algebra.Com's Answer #529466 by MathTherapy(10552) $\"\"$ $\"About$

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\n" ); document.write( "a certain journey took 40 min to complete. if half of the distance was travelled at an average speed of 100 km/h and the other half at an average speed of 60 km/h, what was the length of the journey? i tried 180 km/h divided by 2 and then i got lost
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document.write( "Let distance of entire journey be D
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document.write( "Then half of journey = , or 
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document.write( "Then time taken on 1st half of journey = , or , or 
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document.write( "Time taken on second half of journey = , or , or 
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document.write( "Since time taken on entire journey = 40 mins, or , or  hour, then we get:  
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document.write( "3D + 5D = 240 ------- Multiplying by LCD, 600
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document.write( "8D = 240 
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document.write( "Distance, or , or  km
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document.write( "You can do the check!! \r
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document.write( "Send comments, “thank-yous,” and inquiries to “D” at MathMadEzy@aol.com.
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document.write( "Further help is available, online or in-person, for a fee, obviously.  \n" );
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