Question

Add me to myself and
multiply by 4.
Divide me by 8° and you
will have me once more.
What number am I?​

Answer 1

Answer:

Answer to this riddle is, it can be any number.

Explanation:

Let the number be x

Add me to myself, means (x + x)

Multiply by 4, means 4 (x+x)

Divide me by 8, means 4 (x + x) / 8

You will have me once more,

4 (x + x) / 8 = x

4(2x) / 8 = x

8x / 8 =x

x = x

Thus it is clear that it can be any number. Let us try with number 100

4 (100 + 100)/8

4 (200) / 8

800 / 8

100

We got same number, which we have thought earlier.

Thus Answer to this riddle is, it can be any number.