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Question

Which of the following is NOT a Colour created from a combination of two primary Colours?

This question was previously asked in
RRB NTPC 2019 CBT 1 Question Paper (8-Mar-2021) (Shift 2)
The correct answer is
Blue

Primary vs Secondary Color Combinations

Understanding the difference between primary and secondary colors is key to answering this question.

  • Primary Colors: These are the basic colors that cannot be created by mixing other colors. In traditional color theory (used in subtractive color models like paint), the primary colors are Red, Yellow, and Blue.
  • Secondary Colors: These colors are created by mixing two primary colors.
    • Orange = Red + Yellow
    • Green = Yellow + Blue
    • Violet (Purple) = Red + Blue

Color Analysis

Let's analyze the given options based on the definitions above:

  • Violet: Created by mixing Red and Blue (two primary colors).
  • Green: Created by mixing Yellow and Blue (two primary colors).
  • Orange: Created by mixing Red and Yellow (two primary colors).
  • Blue: A primary color itself. It is not created by mixing other colors.

Conclusion

The question asks which color is NOT created from a combination of two primary colors. Based on the analysis, Blue is a primary color and does not result from mixing two other primary colors.

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