Shabnam take 20 minutes to reach her school, if she goes at a speed of 6 km/ h. If she wants to reach school in 24 minutes, what should be her speed in km/ h?
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Speed of Shabnam = 6 km/hr
Time taken = 20 minutes = 20/60 = 1/3 hour
Distance = Speed * Time = 6 * 1/3 = 2 km
Time she wants to take = 24 minutes = 24/60 = 2/5 hours
Speed = Distance / Time
2 km / 2/5 hours
2 * 5/2 = 5 km/hr
Her speed should be 5 km/ hr
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