Year 7 - Q9.4.10
20636
Challenge. A secret one-step machine either adds a positive whole number or multiplies by a positive whole number. Input \(4\) gives output \(12\). Identify the two possible rules. Choose a second positive whole-number input that will distinguish them, and determine every input that would fail to distinguish them.
Hint
First find the two candidate rules. An input fails only when their outputs are equal.