The teacher is explaining to his students the remarkable fact that twice gives the same answer as two plus two.

Although 2 is the only integer that has this property there are many pairs of numbers that can replace ** TO** Y

**in the equations that are to the right of the board.**

*B***Can you discover a pair like that?** Of course, they can be fractions but your product must be equal to the sum.

#### Solution

There are infinite pairs of numbers that have the same sum and product. We can get all we want as follows.

If we call ** TO** to one of the two numbers, the other can always be obtained by dividing

**between**

*TO***.**

*A - 1*For example: 3 times 1.5 is equal to 4.5 and 3 plus 1.5 is also equal to 4.5.