if we travel 6km per day with the speed of 1km/30min .what will be the total time of covering full 6km?
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Speed =6km/h
distance =1km
Time =distance/speed=1/6h
Speed =8km/h
Distance =1km
Time =distance/speed=1/8h
Average speed =Totaldistance/totaltimetaken
=1+1+
6
1
+
8
1
=2+
24
4+3
=2+
24
7
=2×
7
24
=
7
48
=6.85km/h
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