An aeroplane flies 200 km with a uniform speed of 300 km/hr and then another 200 km with a uniform speed of 240 km/hr . Calculate the average speed of the aeroplane.....
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average speed=total distance/total time
first distance=200km
first time=200/300
. =2/3
second distance=200
second time=5/6
total distance=400
total time= 2/3+5/6
. =3/2=1.5
average speed=
\begin{gathered}\frac{400}{1.5} \\ = \frac{4000}{15} \\ = 266.666....\end{gathered}
1.5
400
=
15
4000
=266.666....
=266.667 km/h
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jyada dimmag lagana padega, but maire pas thoda dimmag hai
sorry I can't give ans......♡.......
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