document.write( "Question 534037: if 6 workers can build 4 cars in two days then how many days would it take 8 workers to build 6 cars? please show workings \n" ); document.write( "
Algebra.Com's Answer #351236 by oberobic(2304)![]() ![]() ![]() You can put this solution on YOUR website! If the crew can build 4 cars in two days, then the crew can build 2 cars in one day. \n" ); document.write( "The crew has 6 workers, so each worker can build 1/6*2 cars per day = 2/6 = 1/3. \n" ); document.write( "Each worker can build 1/3 of a car per day. \n" ); document.write( ". \n" ); document.write( "To build 6 cars, a single worker would need 18 days. \n" ); document.write( "1/3*x = 6 \n" ); document.write( "x = 18 \n" ); document.write( ". \n" ); document.write( "But the crew is not one worker it is 8 workers. \n" ); document.write( "So each worker can do 1/8 of the work. \n" ); document.write( "18/8 = 9/4 = 2 1/4 days \n" ); document.write( ". \n" ); document.write( "Another way to look at this problem is show that a 8 person team can build 8/3 car per day. \n" ); document.write( "8/3*x = 6 cars \n" ); document.write( "8x = 18 \n" ); document.write( "x = 18/8 = 9/4 = 2 1/4 days \n" ); document.write( ". \n" ); document.write( "This answer makes sense because we would expect the 6 workers to do the job in 3 days. \n" ); document.write( "The two additional workers should contribute something. \n" ); document.write( ". \n" ); document.write( "Answer: 8 workers can build 9 cars in 2 1/4 days. \n" ); document.write( " \n" ); document.write( " |