(a) 3.6 sec
(b) 18 sec
(c) 36 sec
(d)72 sec
Explanation:
Speed of train relative to jogger = (45 – 9) km/hr = 36 km/hr.
= (36 x 5/18) m/sec
= 10 m/sec.
Distance to be covered = (240 + 120) m = 360 m.
Time taken = (360/10) sec = 36 sec.
(a) 3.6 sec
(b) 18 sec
(c) 36 sec
(d)72 sec
Explanation:
Speed of train relative to jogger = (45 – 9) km/hr = 36 km/hr.
= (36 x 5/18) m/sec
= 10 m/sec.
Distance to be covered = (240 + 120) m = 360 m.
Time taken = (360/10) sec = 36 sec.
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