The traffic light

Two congruent circles and a triangle are contained in a circle. What fraction is coloured?

Scroll down for a solution to this problem.


A fraction of 32/81 is coloured.

Solution by Dr Rick.


Green and red
Red and green
Traffic lights are always been
With sometimes orange also
They alow to stop, to go
Red is warning us from danger
Green is always doing us a favor
Orange is not like the fruit
And twinkles twinkles
But all three are still shining bright.
Day and night


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