A train covers a certain distance at a speed of 240 km/h in 5 hours. If a flight has to cover the same distance in 45 mins, it must travel at a speed of:

Correct option is A

Given

Speed of train = 240 km/h

Time = 5 hours

Formula used

Speed = $$\frac{Distance}{Time}$$​​

1 Km = 1000 m

1 hour = 60 minutes

Calculation

Distance cover by train in 5 hour = 240 × 5 km

=  1200 km

Time taken by flight to cover 1200 km = $$\frac{45}{60}$$ = $$\frac{3}{4} \ hour$$​​

Speed of flight = 1200/(3/4)

=  (1200/1) × (4/3)

=  1600 km/h