<PRE><B>Question 871076</B>
Martina leaves home at 9 AM, bicycling at a rate of 24 mph. Two hours later, John leaves, driving at 48 mph. At what time will John catch up with Martina? 
***
let x= travel time of Martina
x-2=travel time of john
distance=travel time*speed
..
24x=48(x-2)
24x=48x-96
24x=96
x=4
John will catch up with Martina ln 4 hrs at 1 PM</PRE>