document.write( "Question 1164937: Shivani walks from point A to B at 3 km/h and returns by bicycle at 12 km/h. Her return journey takes 2.5 hours less than her outward journey. Find her time for the entire journey.
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Algebra.Com's Answer #789362 by ikleyn(52781) $\"\"$ $\"About$

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document.write( "The rate bicycling is 4 times the rate walking.\r\n" );
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document.write( "Since the distance is the same, it means that the time walking is 4 times time bicycling.\r\n" );
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document.write( "So, if x is the time bicycling, then the time walking is 4x.\r\n" );
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document.write( "From the condition, you have this equation\r\n" );
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document.write( "    4x - x = 2.5 hours,\r\n" );
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document.write( "or\r\n" );
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document.write( "    3x = 2.5 hours\r\n" );
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document.write( "Hence, the time bicycling is  x =  hours.\r\n" );
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document.write( "It implies that the time for the entire two ways journey is\r\n" );
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document.write( "    x + 4x = 5x =  =  hours = 4 hours and 10 minutes.\r\n" );
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document.write( "ANSWER.  The entire journey takes  4 hours and 10 minutes.\r\n" );
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