Two trains T1 and T2 start simultaneously from two stations X and Y respectively towards each other. If
they are 50 km apart both 3 and 6 hours after start, then find the distance between the two stations. Choose the most appropriate option.
A) 190km B) 200km C) 220km D) 180km E) 150km
In first 3 hours T1 travels R km and T2 travels S km.   After 6 hours they traveled R+S+50+ 50   2(R+S ) = R+S +100   R+S = 100   Hence distance between XY is R+S+ 50 = 100 +50= 
<gadget id="calculator">100 +50</gadget>
<output>150</output>
150   Answer : 150km
<result>E</result>
Two trains T1 and T2 start simultaneously from two stations X and Y respectively towards each other. If
they are 50 km apart both 3 and 6 hours after start, then find the distance between the two stations.