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Question
Mr. Amit can walk 8 km in 1 hour 20 minutes. How long will it take him to walk:
(i) 2500 m?
(ii) 6.5 km?
Solution
Amit walks 8 km in 1 hour 20 min
or `1 1/3=4/3` hours
∴ Speed = `"Distance"/"Time"`
= `8/(4/3)=(8xx3)/4` = 6 km/h
(i) Time taken in 2500 m = `2500/(1000xx6)`
= `5/12` hours = `5/12xx60` = 25 minutes
(ii) Time taken in 6.5 km
= `6.5/6=65/60` hours
= 1 hours 5 minutes
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