Respuesta :

Answer:

I think one.

Step-by-step explanation:

Because 16 divided by 4 is 4 minus the 3 and its 1. So I think 1 is the mystery number.

hope i help

Answer:

1

Step-by-step explanation:

"Three is added to a number"

1 + 3 = 4

"the sum is multiplied by 4"

4 x 4 = 16