Oliver is incorrect because if he were correct he would learn for 2 hours and 15 minutes because, 45 minutes * 3= 2:15 minutes.
It would be 1/7 chance cause there are 7 people total but you have the 1 chance that you are going to get your own name
15/y+11-10/y+3=0
15/y-10/y=5/y 11+3=14
5/y+14=0
o-14=-14
5/y=-14
y=-5/14
Yes it does, let me try to answer it!