Question

An aeroplane flies from A to B at the rate of 500km/hr and comes back from B to A at the rate of 700km/hr. What is the average speed of the aeroplane? By using mean formula.​

Answer 1

Answer:

600 km/hr

Step-by-step explanation:

We'll use the mean formula, which is the sum of terms over the number of terms.

For this question, the sum of the terms is (500+700), and the number of terms is 2.

So the average speed is

$\frac{500+700}{2}\\\\=\frac{1200}{2}\\\\=600$(km/hr)