A) 100m
B) 150m
C) 300m
D) 200m
Correct Answer: D
Solution :
Relative speed \[{{a}_{2}}\,\,{{b}_{2}}={{a}_{2}}\,\,{{b}_{2}}\]km/hr. \[\Rightarrow \] Length of train \[\frac{{{a}_{1}}}{{{a}_{2}}}=\frac{{{b}_{2}}}{{{b}_{1}}}\]
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