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Speed of train relative to jogger=(45-9) km/hr = 36 km/hr = 10 m/sec
Now,
Distance to cover = 240 + 120 = 360 m
Here, t= Time
S= Distance, v= Velocity
We know,
t= s/v
=360/10
=36 sec
So, In 36 sec time the train will pass the jogger.
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