A plane travels 360,000 meters in 900 seconds. What was its speed

900 / 60 = 15

So, the plane traveled 360,000 meters in 15 minutes.

Generally, we do per hour. So, 15 mins * 4 = 60 mins or 1 hour. Because we multiplied the time by 4, we also need to multiply the distance by 4. 360,000 * 4 = 1440000 meters. The plane was traveling at 1440000 meters per hour.

However, it does not make sense to use meters for this long of a distance. I am going to convert it into miles (let me know if the question asks for a different unit of distance). 1 mile equals 1609.34 meters. Divide 1440000 by 1609.34 to get how many miles. 1440000 / 1609.34 = 894.7767408.

Therefore, the plane is going about 895 miles per hour--pretty fast!

Speed=Distance/Time Speed=360,000/900 = 400 m/s