Step 1: Understanding the Colour Mixture.
When black and white are mixed together, they produce a range of grey tones, which can appear like smoke or mist in artwork. This combination results in neutral shades of grey.
Step 2: Verifying the Options.
- Option (1): Black and white mixed together create grey, often referred to as smoke colour.
- Option (2): Blue and white produce light blue or pastel shades, not smoke colour.
- Option (3): Yellow and white create a light yellow or pastel shade.
- Option (4): Brown and white create light brown or beige tones, not smoke colour.
Conclusion:
Therefore, the correct answer is (1) Black and white.