A group of college DJs surveyed students to find out what mu

A group of college DJs surveyed students to find out what music to plan for their upcoming parties. Thirty percent of the students preferred dubstep, 25% of the students liked trance music, and 20% wanted to hear only house music. Fifteen percent of the respondents selected both dubstep and trance. The proportion of students that like trance music but not dubstep is:

A. 20%

B. 5%

C. 10%

D. 15%

Solution

see 25% like trance

and 15% like both trance and dubstep.

so 25% - 15% = 10% will only like trance