Question

When green and red colours are mixed, the colour produced is:
A. Yellow
B. Magenta
C. Indigo
D. Black

Answer 1

Hint: Red, Green and Blue are primary colours and every other colour is a combination of these three colours. To relate this, consider pixel as an example. RBG is the primary colour. Use the concept of colour mixing.

Complete step-by-step answer:
In our surroundings we see a lot of colours but each colour is not a basic colour, It is made up of a mixture of some other colours. Red, Green and Blue are three primary colours. The colours obtained by intermixing these primary colours are called Secondary colours and colours obtained by intermixing primary colours with secondary colours are called Tertiary colours. Any colour can be obtained by mixing these three primary colours in appropriate proportion. Mixing green and red colour gives yellow colour. Yellow is a secondary colour.
Answer is Yellow
Additional Information:
Secondary colours can be obtained as follow:
Red + Green = Yellow
Red + Blue = Magenta
Blue + Green = Cyan

Tertiary colours are as follow:
Red + Yellow = Orange
Yellow + Orange =Yellow-Orange
Red + Orange = Red-Orange
Blue + Violet = Blue-Violet
Blue + Green = Blue-Green
Yellow + Green = Yellow-Green
Mixing all three primary colours in equal proportion will give white colour and Black is just absence of all these three colours. By having different proportions we can generate ideally infinite shades.

Note: Remember what are primary colours, secondary colours and tertiary colours. Red, Green and Blue are basic colours and the rest of the colours are just combinations of these colours in different proportions. By changing the proportion you can generate different shades of colour.