Question

15. After 20 minutes at work, Ellen was able to finish 3 tasks. If she works an 8 hour day, howmany tasks should she expect to finish?

Answer 1

This problem is about the rule of three.

The given ratio is 20 minutes for 3 tasks done. We need to find the number of taks done after 8 hours.

First, we know that 1 hour is 60 minutes, so the total number of minutes is

`8\cdot60=480\min`

Now, the rule of three is about the total number of tasks done after 480 minutes, if three tasks take 20 minutes only.