SAT Math Question of the Day

Math Category: Probability:

Q: Amy has 50 pop songs, 80 rock songs, and 20 blues songs on her iPod nano. Her player is set to choose a song randomly. What is the probability that the next song will be a pop song?

  1. 1/4
  2. 1/3
  3. 1/2
  4. 2/3
  5. 3/4

UNANSWERED.

The correct answer is B.

A: The answer is 1/3.
Probability = Number of ways to get the outcome you want / All possible outcomes
There are 150 total song on her Ipod. (50 pop songs + 80 rock songs + 20 blues songs = 150 songs) She has 50 pop songs. So the probability of a pop song playing next is 50/150 = 1/3.