document.write( "Question 1063336: When the speed of a train is increased by 20%it takes 20minutes less to cover the same distance wht is the time taken to cover the same distance with the original speed \n" ); document.write( "
Algebra.Com's Answer #678422 by stanbon(75887)\"\" \"About 
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When the speed of a train is increased by 20% it takes 20minutes less to cover the same distance what is the time taken to cover the same distance with the original speed.
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\n" ); document.write( "Original speed DATA:
\n" ); document.write( "rate = r mph ; time = t hrs ; distance = r*t miles
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\n" ); document.write( "Modified DATA:
\n" ); document.write( "rate = 1.2r mph ; time = t-(1/5) hrs ; distance = 1.2r(t-(1/5)) miles
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\n" ); document.write( "Equation:
\n" ); document.write( "rt = 1.2rt - 0.24r
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\n" ); document.write( "0.2rt-0.24r = 0
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\n" ); document.write( "0.2t = 0.24
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\n" ); document.write( "Ans:: t = 12 hours
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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