Subject: mathqa
Question: on a certain road 10 % of the motorists exceed the posted speed limit and receive speeding tickets , but 40 % of the motorists who exceed the posted speed limit do not receive speeding tickets . what percent of the motorists on the road exceed the posted speed limit ?
Option: 
A: 16 %
B: 22 %
C: 15 %
D: 10.5 %
Answer: A