Question

Brody can fill a bowl with candy in 3 minutes. While Brody fills the bowl, Hudson takes the candy out of the bowl. With Hudson taking candy out of the

bowl, it takes 5 minutes for Brody to fill the bowl.
Which of the following can be used to determine the amount of time it takes for Hudson to empty the bowl if Brody does not add candy?

Answer 1

a is the correct answer

Explanation:

Answer 2

1/3 - 1/x=1/5

Explanation:

Let the total work be "1"

Brody Hudson Brody+Hudson

Time 3 mins x min 5 min

Efficiency 1/3 -1/x 1/5

The efficiency of Hudson is negative as he is taking out the candies out of the bowl, since efficiency of Brody + efficiency of Hudson = efficiency of both, which means,

1/3 - 1/x = 1/5....