Question: of the 600 residents of clermontville , 35 % watch the television show island survival , 40 % watch lovelost lawyers and 50 % watch medical emergency . if all residents watch at least one of these 3 shows and 18 % watch exactly 2 of these shows , then how many clermontville residents b watch all of the shows ?
A) 150
B) 108
C) 42
D) 21
E) -21
Correct answer: d
Grade: 7 | Topic: Statistics and Probability | Difficulty: Hard | Standard: 7.SP.C.8