A girl moves with 6 km/hr for two hours and 8km/hr for next two hours, then average speed is ____
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Explanation:
Average speed = Total speed ÷ 4 hours
Total speed = 6km/hr + 8km/hr
=14 km/hr
so avg speed = 14 km/hr ÷4
= 3.5 km/hr
Answered by
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Average speed = total distance/ total time
6x2+8x2/4
28/4
So average speed is 7 km/h
6x2+8x2/4
28/4
So average speed is 7 km/h
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