A) \[3u\]
B) \[2u\]
C) \[5u\]
D) \[4u\]
E) \[u\]
Correct Answer: A
Solution :
Let the speed of trains be v. \[\therefore \] \[\frac{v-u}{v+u}=\frac{1}{2}\] or \[2v-2u=v+u\] or \[v=3u\]You need to login to perform this action.
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