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NCERT Exemplar Solutions Class 7 Science Solutions for Motion and Time - Exercise in Chapter 13 - Motion and Time
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A bus travels 54 km in 90 minutes. The speed of the bus is
(a) 0.6 m/s
(b) 10 m/s
(c) 5.4 m/s
(d) 3.6 m/s
Answer:
The answer is (b) 10 m/s
Explanation:
Speed = Distance / Time
Distance = 54km = 54 x1000 = 54000m
Time = 90 minutes = 90x60= 5400s
Speed = 54000/5400 = 10 m/s
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