document.write( "Question 1143808: A car travels from A and B at 30kph,from B to C at 40kph and from C to A at 50kph.If A,B and C are equidistant from each other, determine the average speed of the car for the entire trip by using the harmonic lean formula. \n" ); document.write( "

Algebra.Com's Answer #764716 by ikleyn(53765) $\"\"$ $\"About$

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document.write( "The entire distance consists of three segments of the length  d = |AB|,  d = |BC|  and  2d = |CA|.\r\n" );
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document.write( "Hence, the average speed of the car at the entire journey is\r\n" );
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document.write( "    average speed =  =  =  =  =  = 40.678 kilometers per hour (approximately)\r\n" );
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