document.write( "Question 883828: . Out of a 940 Km journey, a part of the journey was covered by a motor car at a speed of
\n" ); document.write( "72 Km/hr. The remaining part of the journey was covered by train at the speed of 84
\n" ); document.write( "Km/hr. If the total distance was covered in 12 hours, find the distance traveled by the
\n" ); document.write( "train and the time taken by it to cover that distance. \n" ); document.write( "
Algebra.Com's Answer #533783 by stanbon(75887)\"\" \"About 
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Out of a 940 Km journey, a part of the journey was covered by a motor car at a speed of 72 Km/hr.
\n" ); document.write( "Car DATA::
\n" ); document.write( "rate = 72 km/hr ; distance = x km ; time = d/r = x/72 hrs
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\n" ); document.write( "\n" ); document.write( "The remaining part of the journey was covered by train at the speed of 84
\n" ); document.write( "Km/hr.
\n" ); document.write( "Train DATA:
\n" ); document.write( "rate = 84 km/hr ; distance = 940-x km ; time = d/r = (940-x)/84 hrs
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\n" ); document.write( "\n" ); document.write( " If the total distance was covered in 12 hours, find the distance traveled by the train and the time taken by it to cover that distance.
\n" ); document.write( "Equation:
\n" ); document.write( "time + time = 12 hrs
\n" ); document.write( "x/72 + (940-x)/84 = 12
\n" ); document.write( "etc.
\n" ); document.write( "x = 408 km
\n" ); document.write( "940-x = 532 km (train distance)
\n" ); document.write( "532/84 = 6 1/3 hrs (train time)
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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