Question

Aflați numerele de două cifre al cărora produs să fie 6​

Answer 1

Răspuns:

Explicație pas cu pas:

$\bf Fie~ ~\overline {ab}~~numarul ~de ~doua~ cifre$

$\bf a \cdot b = 6$

$\bf \blue{\underline{~a = 1~}} \Rightarrow \green{\underline{~b = 6~}}\Rightarrow \red{\boxed{\bf~ \overline{ab}=16~}}$

$\bf \blue{\underline{~a = 2~}} \Rightarrow \green{\underline{~b = 3~}}\Rightarrow \red{\boxed{\bf~ \overline{ab}=23~}}$

$\bf \blue{\underline{~a = 3~}} \Rightarrow \green{\underline{~b = 2~}}\Rightarrow \red{\boxed{\bf~ \overline{ab}=32~}}$

$\bf \blue{\underline{~a = 6~}} \Rightarrow \green{\underline{~b = 1~}}\Rightarrow \red{\boxed{\bf~ \overline{ab}=61~}}$

$\bf \pink{\boxed{\bf~ \overline{ab}~\in~\big\{16,23,32,61\big\}~}}$