3. If average walking speed of a girl from her home to school is 4 km/h and it takes
her 15 minutes to reach there, calculate the distance between her home and
school.
(Based on NCERT Activity
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Speed = 4 km/hr and time = 15 mins. Since speed = distance/time, Distance = speed x time = 4*15 = 60 km, and since 15 min = 1/4 of an hr, distance = 1/4*60 = 15 kms.
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