In a certain parking lot, 2% of the cars are towed for parking illegally. However 80% of the cars which are parked illegally are not towed. What percentage of cars in the parking lot are parked illegally? Choose the correct choice from the following.
A) 4 %	B) 6 %	C) 8 %	D) 10 %	E) 12 %

Rationale: let x be the number of cars and let y be the number of cars parked illegally . 2 % * x = 20 % * y y / x = 1 / 10 = 10 % the answer is d .
Answer: D