Question
A train passes two people who are walking in the
opposite direction of the train at the rates of 4 m/s and 10 m/sec in 12 seconds and 10 seconds respectively. What is the speed of the train?Solution
Speed of persons =4m/s and 10m/s. Time =12 sec and 8 sec. Let the Speed of the train =x ATQ- D /(4+x) =12               … (1) D/(10+x) =10              … (2) 48+12x =100+10x 2x =52 X =26m/s.
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