(1) If the speed of an aeroplane is decreased by 120 km/h, it takes 18 minutes more
to travel some distance. If the speed is increased by 180 km/h, it takes 18 minutes
less to travel the same distance. Find the average speed of the aeroplane and the
distance
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Answer:
by using formula of average speed =total dostance travelled by an object\total time taken
Step-by-step explanation:
d=v\t
average velocity =initial-final
180-120=60
60\32=1.875
average speed = total distance travelled by abject/total time taken by object
300/32=9.375
average speed 1.875
distance 9.375
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