Question

a man Travels first 160 km at 64 km per hour and the next 160 km at 80 km per hour what is the average the first three 20 kilometre of the tour ​

Answer 1

Answer:

71.11 km per hour

Step-by-step explanation:

Both the distances are the same, so the average speed can be calculated by the equation,

Avg. speed = 2xy/(x+y) = 2*64*80/(64+80) = 10240/144 = 71.11 kmph

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