Asked by Da S

a boat travel for 4hr from pole a to pole b.then it travel for 3hr from pole b back to pole a.the distance between the two poles was 40km
a.find the total time taken for the whole journey
b.find the average speed for the whole journey
Answered by David
total time = 4 hours + 3 hours = 7 hours.

Avg speed = total distance / total time
Avg speed = 40 * 2 / 7 = 80/7 km/h
Answered by JAKE
1.5
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