(a) 65 sec
(b) 89 sec
(c) 100 sec
(d) 150 sec
Explanation:
Speed = (240/24) m/sec = 10 m/sec.
Required time = ((240 + 650)/10) sec = 89 sec.
(a) 65 sec
(b) 89 sec
(c) 100 sec
(d) 150 sec
Explanation:
Speed = (240/24) m/sec = 10 m/sec.
Required time = ((240 + 650)/10) sec = 89 sec.
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