in driving the usual route to school, Abdul computes the average speed for the trip to be 20km/h. On the return trip along the same route. There is less traffic and the average speed is 40km/h. What is the average speed of Abdul's total trip
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Answer:
answer is km / minute
Explanation:
total distance = 60 km
total time taken = 2hrs
average
60 / 120 km/m
1/2 km/m
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