Two trains T1 and T2 start simultaneously from two stations X and Y respectively towards each other. If
they are 70 km apart both 3 and 6 hours after start, then find the distance between the two stations.  Choices.
A) 210 km
B) 240 km
C) 220km
D) 180km
E) 200km
In first 3 hours T1 travels R km and T2 travels S km.   210 kmfter 6 hours they traveled R+S+70+ 700   2(R+S ) = R+S +140   R+S = 140   Hence distance between XY is R+S+ 70 = 140 +70= 
<gadget id="calculator">140 +70</gadget>
<output>210</output>
210   210 kmnswer : 210 km
<result>A</result>
Two trains T1 and T2 start simultaneously from two stations X and Y respectively towards each other. If
they are 70 km apart both 3 and 6 hours after start, then find the distance between the two stations.