Question

aeroplane is flying at speed of 900km/hr Hours
how much distance will it cover in 15 minutes.​

Answer 1

Answer: 225 kilometres

Explanation:

Speed= 900 km/hr= 250m/s

Time=15 minutes= 900 seconds

(We converted speed and time into m/s and seconds, so that they have same unit.)

Distance= Speed * Time

               =250* 900

               =225000 metres or 225 kilometres

               

Answer 2

Answer:

The aeroplane will cover 225 km in 15 minutes.

Explanation:

Given,aeroplane is flying at speed of 900 km/hr

Therefore Speed of the aeroplane is 900 km/hr.

Now we want to find how much distance will it cover in 15 minutes.

We know, Distance = Time × Speed

For example,if speed of a car is 50 km/hr and the car takes 2 hr to cover a certain distance then

Distance

$= 50 \times 2 \\ = 100 \: km$

Here speed = 900 km/hr

and time = 15 minutes

We know 60 minutes means 1 hour

By Unitary method,

1 minutes means $\frac{1}{60} \: hours$

and 15 minutes means

$\frac{1}{60} \times 15 \\ = \frac{1}{4} \\ = 0.25 \: hours$

Now required distance

$= 900 \times 0.25 \\ = 225 \: km$

This is a problem of Speed and Distance chapter,

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