Pat, Kate, and Mark charged a total of 117 hours to a certain project. If Pat charged twice as much time to the project as Kate and 1/3 as much time as Mark, how many more hours did Mark charge to the project than Kate?  Options:
A) 18 B) 36 C) 72 D) 90 E) 65

Rationale: "65 all u do is do 2 : 1 : 6 = > 2 x + x + 6 x = 117 = > x = 13 26 : 13 : 78 78 - 13 = 65 answer e"
Answer: E