Question

An aeroplane flies 1400km in 1h 45mins.how far will it fly in 2h 30min at the same avarage speed?​

Answer 1

The aeroplane will fly 2000 km if travelling at the same average speed.

Explanation:

To calculate the distance an aeroplane will fly in 2 h 30 min if it flies 1400 km in 1 h 45 mins, use the Speed Distance Time formula.

`\boxed{\sf Speed=(Distance)/(Time)}`

There are 60 minutes in one hour. Therefore:

• 1 h 45 mins = 1.75 hours
• 2 h 30 mins = 2.5 hours

To calculate the speed of the aeroplane, divide the distance by the time it takes to travel that distance. Therefore, if an aeroplane flies 1400 km in 1.75 hours then its average speed is:

`\sf Speed=(1400\;km)/(1.75\;h)=800\;km/h`

To determine the distance the aeroplane will travel in 2.5 hours, multiply the found speed of 800 km/h by the time:

`\sf Distance=800\;km/h * 2.5\;h=2000\;km`

Therefore, the aeroplane will fly 2000 km in 2 h 30 min if travelling at the same average speed.