Two spies agreed to meet at a gas station between noon and 1pm, but they have both forgotten
the arranged time. Each arrives at a random time between noon and 1pm and stays for 6
minutes unless the other is there before the 6 minutes are up. Assuming all random times are
equally likely, what is the probability that they will meet within the hour (noon to 1pm)?
Answers:
A) 0.12  B) 0.15  C) 0.17  D) 0.19  E) 0.25
The probability that they do not meet is represented by the total of the areas of the   two outer triangles in the figure below, which is 0.81. So the probability of a meeting is 1 -   0.81 =0 .19.   correct answer 0.19
<result>D</result>
Two spies agreed to meet at a gas station between noon and 1pm, but they have both forgotten
the arranged time. Each arrives at a random time between noon and 1pm and stays for 6
minutes unless the other is there before the 6 minutes are up. Assuming all random times are
equally likely, what is the probability that they will meet within the hour (noon to 1pm)?