An automobile assembly line finishes 3 cars every 2 hours.

Question

1.How many cars are finished each hour?

2.Determine approximately how long it takes to finish 1 car.

3.If it takes 2 hours to finish 3 cars, how many hours does it take to finish..

a) 6 cars? b) 9 cars? c) 12 cars?

d) 4 cars? e) 8 cars? f) 16 cars?

Answer 1

3 cars every 2 hours is the same as 3/2 = 1 1/2 cars every hour

one car takes 2/3 of an hour = 40 minutes to complete

a) 6 cars take 4 hours

b ) 9 cars take 6 hours

c) 12 take 8 hours

d) 4 take 8/3 hours or 2 hours and 40 minutes

e) 8 take 16/3 hours or 5 hours and 20 minutes

f) 16 take 32/3 hours or 10 hours and 40 minutes