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working together, greg and cindy can clean the snow from the driveway in 12 minutes. it would have taken cindy, working alone, 20 minutes. how long would it have taken greg alone?

Respuesta :

Answer:

How long would it have taken Greg alone?

4 minutes

Explanation:

If Greg and Cindy cleans the snow in 12 minutes

Then, it would take Cindy 20 minutes to clean it alone.

Therefore, we need to find the amount of time it would take Greg alone to clean the snow.

Let Greg be = x

Let Cindy be = y

x + y = 12 minutes

y= 20 minutes

To find x, we would get 20- 12 = 4 minutes

Therefore, it would take Greg alone 4 minutes to clean the snow from the driveway.

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