On a certain road 10% of the motorists exceed the posted speed limit and receive speeding tickets, but 22% 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?
Options
A) 10.5%  B) 12.8%  C) 15%  D) 22%  E) 30%
Answer is B.   This question is in the OG and thus well explained by ets.   those who exceed : X   so X = 10%+0,22X   id est X = 12,8%
<result>B</result>
On a certain road 10% of the motorists exceed the posted speed limit and receive speeding tickets, but 22% 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?