Alli has hired mark and alexis to work for his shipping company. Mark can load a truck with packages in 120 minutes. Alexis can load the same number of packaged in 240 minutes. If mark and alexis work together on a particular truck, how many minutes will it take them to load all of the packages

The answer to your question is : 80 minutes

Step-by-step explanation:

Data

Mark = 120 minutes

Alexis = 240 minutes

Together = ?

We need to write an equation, we consider that in 1 minute, Mark loads 1/120 and Alexis 1/240. Then the equation is:

1 = x/120 + x/240 1 = truck uploaded; x = time in minutes

Solve it 1 = (2x + x) / 240

240 = 3x

x = 240/3

x = 80 minutes