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13 votes
13 votes
An aeroplane covers a distance of 7200 km an hour how much distance will it cover in 12 hours​

User KatGaea
by
2.9k points

1 Answer

12 votes
12 votes

Answer:

86,400 km.

Explanation:

Let x be time (hours) and y be distance (km).

If an aeroplane covers a distance of 7200 km/h then we can write an equation as y = 7200x

This means if x = 1 i.e time is one hour and the distance is 7200 km.

Therefore, in 12 hours will be x = 12, substitute x = 12 in y = 7200x.

Thus, y = 7200(12) then calculate as we receive 86,400 km.

Hence, it will cover 86,400 km in 12 hours.

Second Method

Another method involves with speed formula, speed = distance/time.

Because we want to find distance, move time to multiply with speed.

Thus, our new formula for distance is distance = speed*time.

Our speed is 7,200 km/h and time would be 12 because we want to find distance within 12 hours.

Hence, distance = 7200*12 = 84,600 km.

If you have any questions regarding this math problem or my answer, you can always reach out to me in comment!

User Nadi
by
3.0k points
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