Lenny’s favorite radio station has this schedule:

news: 15 min.
commercials: 3 min.
music: 42 min.

If Lenny chooses a time of day at random to turn on the radio to his favorite station, what is the probability that the news will be on?

Question

Lenny’s favorite radio station has this schedule:

news: 15 min.
commercials: 3 min.
music: 42 min. 

If Lenny chooses a time of day at random to turn on the radio to his favorite station, what is the probability that the news will be on?

anonymous · Answer

The total time here is 42+3+15 minutes, or 60 minutes. So, for every 60 minutes, there are 42 minutes of music, 3 minutes of commercials and 15 minutes of news. So, to find the probability of the news being on, we divide the time the news is on by the total time:
$$15 \min/60 \min = 25percent$$

anonymous · Answer

Oh, sweet. This makes a pellet ton of sense! <Sorry for the foul language.. But no seriously! I get it now!

anonymous · Answer

I'm glad I could help.