Question

how much diatance will an aeroplane fly in 20min 20sec at a speed of 7200 km/hr​

Answer 1

Answer:

244000m distance will be covered by the aeroplane ( 244km )

Step-by-step explanation:

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Answer 2

Correct question

• How much distance will an aeroplane fly in 20 min 20 sec at a speed of 7200 km/hr ?

Given

• Speed → 7200 km/h
• Time Taken → 20 min 20 sec
• Distance travelled → ?

To find

• the distance travelled

Formula Used

★ Distance = Speed × Time taken

Solution

First , we'll change the speed into m/s

To do this , we'll need to multiply 5 / 18 to the given speed !!

This is done because ,

when we need to convert km/h into m/s , we multiply 1000 to the km and 3600 to the hour .

As we know ,

1 km = 1000 m

1 hour = 3600 sec

So , km/h is multiplied with 1000 / 3600 Or 5 / 18 ( std. form )

Now , let's proceed ,

→ 7200 km/h × 5 / 18 = 2000 m/s

Now , it is needed to convert the time into sec ,

→ 20 min × 60 + 20 = 1220 sec

As we know ,

D = Speed × Time

Hence , 2000 m/s × 1220 sec = 2440000 m or 2440 km

Therefore , it covers 2440 km in 1220 sec with speed 2000 m/s !!

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