document.write( "Question 564752: in a car race, the speed of one car is 120kph and the other car is 105kph. if the faster car finished the race 20mins before the slower one, what was the distance of the race? \n" ); document.write( "

Algebra.Com's Answer #365467 by lwsshak3(11628) $\"\"$ $\"About$

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in a car race, the speed of one car is 120kph and the other car is 105kph. if the faster car finished the race 20mins before the slower one, what was the distance of the race?
\n" ); document.write( "**
\n" ); document.write( "let x=distance
\n" ); document.write( "distance/speed=travel time
\n" ); document.write( "x/105-x/120=20 min=1/3 hr
\n" ); document.write( "LCD: (105)(120)
\n" ); document.write( "120x-105x= (105)(120)/3
\n" ); document.write( "15x= (105)(120)/3
\n" ); document.write( "45x= (105)(120)
\n" ); document.write( "x= (105)(120)/45
\n" ); document.write( "x=280
\n" ); document.write( "ans:
\n" ); document.write( "distance of the race=280 km \n" ); document.write( "

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