Question

How many combinations can you make with the numbers $1,2,3$?

Answer 1

Find the number of different ways can you combine the numbers $\mathbf{1}\mathbf{,}\mathbf{2}\mathbf{,}\mathbf{3}$.

The numbers are: $1,2,3$.

Combination of $n$ no of digits $=n!$.

So, combination of $3$ digits is,

$$\begin{gathered} =3! \\ =3\times 2\times 1 \\ =6 \end{gathered}$$.

Therefore, the combinations can you make with the numbers $\mathbf{1}\mathbf{,}\mathbf{2}\mathbf{,}\mathbf{3}$ are $\mathbf{6}$.