question_answer

At a car park there are 100 vehicles, 60 of them are cars, 30 are vans and the remainder are Lorries. If every vehicle is equally likely to leave then find the probability of car left second if Lorry or van has left first.

A)  \[\frac{1}{10}\]                        

B)  \[\frac{1}{5}\]

C)  \[\frac{20}{33}\]          

D)  \[\frac{10}{33}\]

E)  None of these