document.write( "Question 1182444: the track is a 500m circuit. Ali practices running at a speed of 10kph. Ben practices cycling and travels at 25kph. How long does Ali take to run one lap? \n" ); document.write( "
Algebra.Com's Answer #853604 by n2(54)\"\" \"About 
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\n" ); document.write( "the track is a 500m circuit. Ali practices running at a speed of 10kph.
\n" ); document.write( "Ben practices cycling and travels at 25kph. How long does Ali take to run one lap?
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\n" ); document.write( "\n" ); document.write( "Calculations in the post by @CPhill are incorrect.\r
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\n" ); document.write( "\n" ); document.write( "He lost the necessary precision and came to wrong answer of 185 seconds.\r
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\n" ); document.write( "\n" ); document.write( "The correct answer is 180 seconds, or 3 minutes,\r
\n" ); document.write( "\n" ); document.write( "as it is shown in correct solutions by @greenestamps and @ikleyn at this spot.\r
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\n" ); document.write( "\n" ); document.write( "The error in 5 seconds is CATASTROFICAL for this problem.\r
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\n" ); document.write( "\n" ); document.write( "I recommend to a reader to ignore the post by @CPhill.\r
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