document.write( "Question 691238: the distance between A and B is 80km a train from A is going towards B with a speed of 60 km/hr and a train comes from point B towards a with a speed of 100km/hr where is point C if they will meet at the same time? \n" ); document.write( "
Algebra.Com's Answer #426594 by ankor@dixie-net.com(22740)\"\" \"About 
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The distance between A and B is 80km
\n" ); document.write( "A train from A is going towards B with a speed of 60 km/hr;
\n" ); document.write( "and a train comes from point B towards A with a speed of 100km/hr
\n" ); document.write( "Where is point C if they will meet at the same time?
\n" ); document.write( "the phrase \"meet at the same time\" makes no sense.
\n" ); document.write( ":
\n" ); document.write( "Assume you mean, \"Where is C, the point that they meet?\"
\n" ); document.write( ":
\n" ); document.write( "let c = distance from A
\n" ); document.write( "then
\n" ); document.write( "(80-c) = distance from B
\n" ); document.write( ":
\n" ); document.write( "Write a time equation, time = dist/speed
\n" ); document.write( ":
\n" ); document.write( "A's travel time = B's travel time
\n" ); document.write( "\"c%2F60\" = \"%28%2880-c%29%29%2F100\"
\n" ); document.write( "Cross multiply
\n" ); document.write( "100c = 60(80-c)
\n" ); document.write( "100c = 4800 - 60c
\n" ); document.write( "100c + 60c = 4800
\n" ); document.write( "160c = 4800
\n" ); document.write( "c = 4800/160
\n" ); document.write( "c = 30 km from A, is where they meet
\n" ); document.write( ":
\n" ); document.write( ":
\n" ); document.write( "Prove this by finding the travel time of each train, should be equal
\n" ); document.write( "30/60 = .5 hrs
\n" ); document.write( "(80-30)/100 = .5 hrs
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