Question

It takes Eddie 2 hours to shovel the snow from a driveway and sidewalk. Brad can shovel the snow from the same driveway and sidewalk in 5 hours. How long would it take them working together to shovel the snow?

Answer 1

Given:

Eddie takes 2 hours to shovel.

Brad takes 5 hors to shovel.

To Find:

The amount of time needed if both of time work together.

Solution:

Eddie takes 2 hours to shovel.

1 hour = 1/2 of the work

Brad takes 5 hors to shovel.

1 hour = 1/5 of the work

If they work together:

1 hour = 1/2 + 1/5

1 hour = 7/10 of the work

Find the number of hours needed:

Number of hours needed = 10/7

Number of hours needed = 1.43 hours

Answer: It takes about 1.43 hours if they shovel together.