If you have a spinning wheel with 3 green sectors, 1 blue sector and 1 red sector, what is the probability of getting a green sector? What is the probability of getting a none-blue sector?

There are five sectors. Three sectors are green out of five sectors.
Therefore, probability of getting a green sector = 3/5
There is one blue sector out of five sectors. Non-blue sectors = 5 – 1 = 4 sectors
Therefore, probability of getting a non-blue sector = 4/5

Class 8 Maths Chapter 5 Exercise 5.3 Solution in Video

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