Lizzy: Ziggy is a club DJ. Typically, Ziggy gets 30 song requests every night. Half the songs requested are electropop. A third of that amount are requests for dance music. Five song requests are rock music, and song requests for oldies are three less in number than rock requests. Ziggy plays a DJ’s choice song half the number of times he plays an oldie. Ziggy also sometimes gets rap song requests. Typically, how many rap songs does Ziggy get requested every night?.
Me: Hmmm, let me think. I think this is the detailed solution:
Ziggy gets 30 / 2 = 15 electropop song requests every night. There are 15 / 3 = 5 dance song requests every night. There are 5 - 3 = 2 oldies requests every night. Ziggy plays DJ’s choice 2 / 2 = 1 time every night. Thus, Ziggy gets 30 - 15 - 5 - 5 - 2 - 1 = 2 rap songs requested every night. Final answer: 2.