SSC GD Constable 17 Nov 2021 Shift 3 Paper

Question : 20 of 100

Marks: +1, -0

If 'white' is called 'black', 'black' is called 'grey', 'grey' is called 'red', 'red' is called 'green', 'green' is called 'blue' and 'blue' is called 'yellow', then what will be the colour of 'Stop' signal light?