Question

final exam
to repaint your office, you hire 3 professionals, each at a rate of $30/hour, on the weekend, so that they earn double-time. what is the cost for their 4 hours of work?
$?

Explanation:

Step1: Calculate double - time rate

The normal rate is $30 per hour. Double - time means we multiply the normal rate by 2. So the double - time rate per professional per hour is $30\times2 = 60$ dollars per hour.

Step2: Calculate total hours for all professionals

There are 3 professionals and each works 4 hours. So the total number of hours worked by all professionals is $3\times4=12$ hours.

Step3: Calculate total cost

The rate per hour (double - time) is $60 per hour and the total hours is 12 hours. So the total cost is $60\times12 = 720$ dollars.

Answer:

720