A technician makes a round-trip to and from a certain service center by the same route. If the technician completes the drive to the center and then completes 30 percent of the drive from the center, what percent of the round-trip has the technician completed?
Answers
A) 60  B) 65  C) 55  D) 50  E) 55
round trip means 2 trips i.e.to and fro. He has completed one i.e 50% completed. then he traveled another 30% of 50% i.e 15%. so he completed   50 +15= 
<gadget id="calculator">  50 +15</gadget>
<output>65</output>
65 % of total trip.   65
<result>B</result>
A technician makes a round-trip to and from a certain service center by the same route. If the technician completes the drive to the center and then completes 30 percent of the drive from the center, what percent of the round-trip has the technician completed?