A group of 3 investors and 3 clients recently frequented the Chinese Luyang Restaurant. The total bill for the meal, including 20% gratuity, came to $720. On average, how much did the meal of each individual cost before gratuity? Choose one.
A) $ 160	B) $ 96	C) $ 90	D) $ 80	E) $ 100

Rationale: 3 investors and 3 clients - so total 6 people the bill $ 720 includes 20 % gratuity . . . so the actual cost of dinner was $ 600 now , the cost per person will be $ 600 / 6 which is $ 100 option e
Answer: E