A certain NYC taxi driver has decided to start charging a rate of r cents per person per mile. How much, in dollars, would it cost 6 people to travel x miles if he decides to give them a 50% discount? Choose the correct choice from the following choices:
A) 3xr/100 B) 3x/200r C) 3r/200x D) 3xr/200 E) xr/600
6xr/2 is in cents - 6xr/200 dollars = 3xr/100 dollars   3xr/100nswer : 3xr/100
<result>A</result>
A certain NYC taxi driver has decided to start charging a rate of r cents per person per mile. How much, in dollars, would it cost 6 people to travel x miles if he decides to give them a 50% discount?