SOLUTION: A plane travelled 900 km in an hour and half. what is the average speed?

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Question 286761: A plane travelled 900 km in an hour and half. what is the average speed?

Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
D=RT
900=R*1.5
R=900/1.5
R=600 KMH. ANS.