If the number code for $\text{"GREEN"}$ is $49$, then the difference between the number codes of $\text{"VIOLET"}$ and $\text{"PINK"}$ is:

Let's find the logic using standard alphabetical positions ($\text{A}=1,\text{B}=2,\dots ,\text{Z}=26$):
For $\text{"GREEN"}$:

* $\text{G}=7$
* $\text{R}=18$
* $\text{E}=5$
* $\text{E}=5$
* $\text{N}=14$

$$\text{Sum}=7+18+5+5+14=49$$

The logic is simply the sum of the positional values of the letters.

Now, calculate the code for $\text{"VIOLET"}$:

* $\text{V}=22$
* $\text{I}=9$
* $\text{O}=15$
* $\text{L}=12$
* $\text{E}=5$
* $\text{T}=20$

$$\text{Code for VIOLET}=22+9+15+12+5+20=83$$

Next, calculate the code for $\text{"PINK"}$:

* $\text{P}=16$
* $\text{I}=9$
* $\text{N}=14$
* $\text{K}=11$

$$\text{Code for PINK}=16+9+14+11=50$$

Find the difference between the two codes:

$$\text{Difference}=83-50=33$$