Question

aeroplane flies 200 km with a uniform speed of 300 km per hour at and then another kilometre with a uniform speed of 240 km per hour calculate the average speed of the aeroplane​

Answer 1

Answer:

Hope this helps you..............

Explanation:

total distance=200+200=400 km

time taken for first 200 km=200/300=2/3 hr

time taken for second 200 km=200/240=5/6 hr

total time=2/3+5/6=9/6=3/2=1.5 hr

average speed=total distance/total time

=400/1.5

=800/3=266.67kmph