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.
Sep 11, 17 05:06 PM
Easy to follow solution to 100 hard word problems in algebra
New math lessons
Your email is safe with us. We will only use it to inform you about new math lessons.