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(1) If the speed of an aeroplane is decreased by 120 km/h, it takes 18 minutes moreto travel some distance. If the speed is increased by 180 km/h, it takes 18 minutesless to travel the same distance. Find the average speed of the aeroplane and thedistance.​

Answer»

Step-by-step explanation:

avreage SPEED is 720 and distance TRAVELLED is 1080



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