2 person's meeting probability

[crina26]

Homework Statement

Mykola and Petro have a meeting on a bus station between 9:00P.M.
and 10:00P.M. The guy that come 1st waits only 15 minutes for the other guy and
if the 2nd guy doesn't come during this time the 1st guy will go away. Find a
probability that Mykola and Petro will meet each other assuming that Mykola's and
Petro's times of arriving are are equally likely on interval [9,10]

Homework Equations

The Attempt at a Solution

i will highly appreciate all your hints

 

[daveb]

What have you tried so far? You have to do some work and let us know where you're stuck.

 

[crina26]

i got Probability(meeting)= 1- 2025/3600=7/16... am i right?