(a) 9
(b) 10
(c) 12
(d) 20
Due to stoppages, it covers 9 km less.
Time taken to cover 9 km = 9/54 x 60 min = 10 min.
(a) 9
(b) 10
(c) 12
(d) 20
Due to stoppages, it covers 9 km less.
Time taken to cover 9 km = 9/54 x 60 min = 10 min.
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