We want to try a new brand of pesticide on three different type of tree. Type ''A'' represent 40%, type ''B'' represent 25% and type ''C'' represent 35%. The pesticide works well on 90% of the type ''A'', 85% of type ''B'' and 75% of type ''C''. If we pick randomly one tree, what is the probability that it is a type B tree, and that the pesticide work on it ?

A) 0; 2545

B) 0; 2321

C) 0; 2125.

D) 0; 7455.

E) Aucune de ces reponses.