document.write( "Question 1201033: A car and a bust left regina at the same time. the car drove 480km west to calgary. the bus drove 570 km east to winnipeg. the bus travelled 15 km/hr faster than the car. they arrived at the destinations at the same time. what was the speed of the car ? what was the speed of the bus ? \n" ); document.write( "
Algebra.Com's Answer #835276 by mananth(16946)![]() ![]() You can put this solution on YOUR website! Let car speed be x km/h \n" ); document.write( "Bus speed = (x+15) km/h\r \n" ); document.write( "\n" ); document.write( "Time taken by both same \n" ); document.write( " Time = Distance / speed \n" ); document.write( "480 / x = 570/(x+15) \n" ); document.write( "Cross multiply \n" ); document.write( "480*(x+15) = 570 x \n" ); document.write( "480 x + 7200 = 570x \n" ); document.write( "7200 = 570x -480x \n" ); document.write( "7200 = 90x \n" ); document.write( "x = 7200/90 \n" ); document.write( "x = 80 \n" ); document.write( "Speed of car = 80 km/h \n" ); document.write( "Speed of bus = 80 +15 = 95 km/h\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |