John makes $60 a week from his job. He earns a raise and now makes $80 a week. What is the % increase? Answers:
A) 16 % B) 33.33 % C) 17 % D) 17.61 % E) 17.56 %

Rationale: "increase = ( 20 / 60 ) * 100 = ( 2 / 6 ) * 100 = 33.33 % . b"
Answer: B