Question

The mean of two numbers is 20 and their difference is zero then the numbers are.

Answer 1

Step-by-step explanation:

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Answer 2

Given:

The mean of the two numbers is 20 and their difference is zero.

To find:

We have to find the numbers.

Solution:

Let the numbers be x and y.

The mean of the two numbers is 20.

So, we can write,

$\frac{x + y}{2} = 20 \\ x + y = 40$

Their difference is zero.

So, we can write-

x-y=0 or x=y

Putting x in terms of y we get-

$y + y = 40 \\ 2y = 40 \\ y = 20$

As y is 20 so, x will be also 20.

Thus the numbers are 20,20.