Brad says that if a second number is 125% of the first number, then the first number must be 75% of the second number. is he correct? justify your answer.

Given:

A second number is 125% of the first number.

To Find:

Whether the first number is 75% of the second number.

The first number is not 75% of the second number. It is actually 80% of the second number.

Step-by-step explanation:

Let the two numbers be denoted by x and y. Given that y is 125% of x. So,

We can simplify this as

Or,

Thus, we see that the first number is not 75% of the second number. It is actually 80% of the second number.