a person walking on foot has to reach his office in 30 minutes. if his office is 5 km from his home, with what speed should he walk to reach the office in time.
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Explanation:
Speed = Distance / Time ( 5km = 5000m ) and (30 minutes = 1800 sec)
Speed = 5000m/1800sec
Speed = 25 / 9 m/s
Speed = 2 whole 7 / 9 m/s
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