Clear your schedule..and your desk. Make it happen before Friday. Ten bonus points doesn't do this one justice. I'm calling 15 extra credit points here, definitely worth it.
In a modern art gallery, an artist is set to display his many paintings. At constant intervals he hangs a different painting on the wall provided to him. When the clock hit 11 am, he hung painting number 30. When it struck 4 pm, he hung painting number 240 and when it struck 7:30 pm, he hung painting number 315.
Your mission is twofold: A) Can you determine, which painting number will be hung when the time is 9:20 pm ? B) What time did he start hanging paintings?
