it 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 .
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Answer:
1 km
Explanation:
By simple tricks
Half of 4km/h=2km/h
(it mean that 2km in half hrs)
&half of 2km/h=1km/h
(it means that 1km in15min)
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