Question

a student walk from his house at the speed of 5 km per hour and reaches the school 10 minutes late . If his speed

Answer 1

Ur ans is option (c) 5.5 km ....
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Answer 2

let the distance is d

if speed is 5 km/hr then 10 minutes late

if speed is 6 km/hr then 15 minutes earlier

time = distance / speed

first time = d / 5

second time = d / 6

according to condition ,

d/5 - d/6 = 25/60

6d - 5d / 30 = 25 /60

d = 30×25 /60

d = 12.5 km