<PRE><B>Question 486783</B>
Rate M = 2.6 km/hr
Rate J = 2.6 / .75 = 3.467
As usual, x = answer = hours needed by J to catch M.
The distance at that point will be same for both:
3.467 x = 2.6 * (x + 2)
(3.467 - 2.6) x = 2 * 2.6
Note that this is also the expression for observed (by either jogger) relative speed * time = distance between them.
0.867 x = 5.2
x = 6 hours.
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