Michael Scott, by himself, can close 8 sales in 4 hours. If he works with Dwight, they can close 8 sales in 2 hours. How many hours does it take Dwight to close 8 sales by himself?
For Michael, 8 sales in 4 hours means 2 sales per 1 hour or 2/1
Michael's sales / hour + Dwight's sales / hour = together's sales per hour
Dwight's sales / hour is x/1
Together, 8 sales in 2 hours means 4 sales per 1 hour or 4/1
2/1 + x/1 = 4/1
2 + x = 4
2 - 2 + x = 4 - 2
x = 2
So Dwight can do 2 sales per hour. It is basically the same as Michael. In this case, he can also do 8 sales in 4 hours.
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May 21, 17 09:19 PM
Sharpen your math skills by grade here with crystal clear lessons