Color mixing confusion

Tools, Techniques, and Reference Materials Painting and airbrushing
1

I have a Tamiya Kit that says for one of the colors that it should be XF-3: 2
XF-5: 1

Does this mean that there should be 2 parts XF-3 and 1 part XF-5? I.

Thanks in advance for clearing this up.

2

Yep, that is correct.