Question

An aeroplane travels 2400 km in 3 hours 20 minutes.

1) Find it's speed.
2) how much time will it take to cover 1800 km at this speed?​

Answer 1

Time = 3 hours 20 mins = 3 1/3 hours= 10/9 hours
Distance= 2400 km
Speed =?

1). Speed = Distance / Time
= (2400) / (10/9)
= 2160 Kmph

2). Time = Distance / Speed
= 1800 / 2160
=0.83 hrs
=49.8 minutes which is approximately 50 minutes