A and B start from Opladen and Cologne respectively at the same time and travel towards each other at constant speeds along the same route. After meeting at a point between Opladen and Cologne, A and B proceed to their destinations of Cologne and Opladen respectively. A reaches Cologne 40 minutes after the two meet and B reaches Opladen 50 minutes after their meeting. How long did A take to cover the distance between Opladen and Cologne? Pick:
A) 1 hour
B) 1 hour 20 minutes
C) 2 hours 30 minutes
D) 1 hour 40 minutes
E) 2 hours 10 minutes
v1 and V2 are speeds.   v1.t /50 = v2   v2.t/40 = v1   v1/v2 = 5/4   which train A would 50. 4/5 mins to cover the same distance     40 + 40= 
<gadget id="calculator">  40 + 40</gadget>
<output>80</output>
80 mins (ANS 1 hour 20 minutes)
<result>B</result>
A and B start from Opladen and Cologne respectively at the same time and travel towards each other at constant speeds along the same route. After meeting at a point between Opladen and Cologne, A and B proceed to their destinations of Cologne and Opladen respectively. A reaches Cologne 40 minutes after the two meet and B reaches Opladen 50 minutes after their meeting. How long did A take to cover the distance between Opladen and Cologne?