Question

For every 15 minutes of a show, there are two minutes of commercials. At this rate, if Leila has seen 45 minutes of a show, how many minutes has she been watching TV altogether

Answer 1

51 minutes

Explanation:

We have the ratio ...

show minutes : commercial minutes = 15 : 2

Multiplying by 3 gives ...

show minutes : commercial minutes = 45 : 6

The total of show minutes and commercial minutes is 45+6 = 51 minutes.