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Es pece of an aeroplanes decreome distance Irecedit30 km-mine- ---over- same distance finde ese seedaccome on h istoireif the speed of an aeroplane is decreased by 120 km per hour it takes 18 minutes more to travel some distance if the speed is increased by 180 km per hour it takes 18 hours late to travel the same distance find the average speed of the aeroplane and distance |
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