Ajay walked at an average speed of 8km/hr for 45minutes and then ran at an average speed of 12km/hr for 40minutes what was his average speed for the whole journey?
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Answer:
9.88 km/hr
Step-by-step explanation:
Distance 1 = 8*45/60 = 6km
Distance 2 = 12*40/60 = 8km
Average speed = Total distance/Total time
= 14/ (85/60)
= 14*60/85
= 9.88 km/hr
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