Jaison N. answered • 09/12/12

A PhD to Teach You Math and Physics

hi Marlecia,

This is a problem in rates and I believe there is a little twist that can make this problem difficult. Let's think about it as "how many chairs can a pair of workers make per day?". We know that a pair of workers can make 2 chairs every 2 days, which is a rate of 1 chair per day per pair of workers.

If we multiply this rate by 20, we have that a pair of workers can make 20 chairs in 20 days.

The question is how many chairs can 8 workers make in 20 days. In other words, how many chairs can 4 pairs of workers make in 20 days. And we know that each pair of workers can make 20 chairs in 20 days. So, multiplying this rate by 4 gives us 80 chairs in 20 days.

George L.

Jason,

Thanks for catching my mistake.

the last thing I want to do is make math

harder to figure out.

George L ::::

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09/12/12