document.write( "Question 1110001: At 09 00 car A starts its journey and traveling at 70 km/h at 10 30 car B started from the same place and traveled steadily on the same road. Car B took 3 1/2 h to catch up with car A. Find the speed of Car B.\r
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Algebra.Com's Answer #724996 by greenestamps(13198)![]() ![]() You can put this solution on YOUR website! \n" ); document.write( "The second car started 1.5 hours after the first; and it caught up to the first car after traveling 3.5 hours. \n" ); document.write( "So the first car traveled the same distance in 5 hours that the second car traveled in 3.5 hours. \n" ); document.write( "The ratio of travel times is 5:3.5, or 10:7; since the distances are the same when the second car catches up to the first, that means the ratio of speeds is 7:10. \n" ); document.write( "If the ratio of speeds is 7:10 and the first car traveled at 70 km/h, the second car traveled at 100 km/hr. \n" ); document.write( " |