One grocery clerk can stock a shelf in 40 min. A second clerk requires 25 min to stock the same shelf. How long would it take to stock the shelf if the two clerks worked together?

It would take 15.3846 minutes to stock the shelf if the two clerks worked together

Step-by-step explanation:

The first grocery clerk can stock a shelf in 40 minutes, it means that he can do  1/40 shelf per minute. At the same way, the second clerk requires 25 minutes, it means that he can do 1/25 shelf per minute

Then, if they worked together, they can stock 13 shelfs in 200 minutes, and it is calculated as:

Now, using the rule of three, we need to find the minutes required to stock 1 shelf if they work at a rate of 13 shelf in 200 minutes as:

13 shelfs --------------   200 minutes

1 shelf    ---------------    X minutes

Where X are the minutes required to stock 1 shelf.

So, solving for X, we have:

Finally, it would take 15.3846 minutes to stock the shelf if the two clerks worked together

2 is the final ! : )

sine

step-by-step explanation: