Question

Due to inclement weather, an aeroplane reduced its speed by 300 km/hr and reached the destination of 1200 km late by 2 hrs. Then the scheduled duration of the flight was​

Answer 1

Let the original speed of Aeroplane be x km/hr

1200(x−300)−1200x

=2x−x+300(x−300)x

=1200

Speed Time and Distance mcq solution image

Original time :

t=1200/600t

Time =2 hours

Answer 2

let speed of plane be x km/hr it is said that the speed of the plane is reduced to 300km/hr After that it is proved above in given picture