document.write( "Question 1125616: A train travels 250 km at the speed of 60 km/hr and arrives ten minutes later than schedule. At what speed (in km/hr) should it travel to arrive exactly on time ? \n" ); document.write( "

Algebra.Com's Answer #741917 by josmiceli(19441) $\"\"$ $\"About$

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Let $\"+s+\"$ = the speed to arrive on time
\n" ); document.write( "Let $\"+t+\"$ = the time to arrive on schedual
\n" ); document.write( "覧覧覧覧覧覧
\n" ); document.write( "(1) $\"+250+=+s%2At+\"$
\n" ); document.write( "(2) $\"+250+=+60%2A%28+t+%2B+10%2F60+%29+\"$
\n" ); document.write( "覧覧覧覧覧覧覧覧-
\n" ); document.write( "(2) $\"+250+=+60t+%2B+10+\"$
\n" ); document.write( "(2) $\"+60t+=+240+\"$
\n" ); document.write( "(2) $\"+t+=+4+\"$
\n" ); document.write( "And
\n" ); document.write( "(1) $\"+250+=+s%2A4+\"$
\n" ); document.write( "(1) $\"+s+=+62+.5+\"$
\n" ); document.write( "The train should travel 62.5 km/hr
\n" ); document.write( "覧覧-
\n" ); document.write( "Check:
\n" ); document.write( "(2) $\"+250+=+62.5%2At+\"$
\n" ); document.write( "(2) $\"+t+=+4+\"$
\n" ); document.write( "OK
\n" ); document.write( " \n" ); document.write( "

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