Ex.5.3 Q5 Data Handling Solutions - NCERT Maths Class 8

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Question

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 non-blue sector?

Text Solution

What is known?

Spinning wheel with \(3\) green sectors, \(1\) blue sector and \(1\) red sector

What is unknown?

i)  probability of getting a green sector

ii) probability of getting a non-blue sector

Reasoning:

Probability \(\begin{align}= \frac{{{\text{Number of favourable outcomes}}}}{{{\text{Total number of outcomes}}}}\end{align}\)

Steps:

Total number of sectors \(= 5\)

Total number of green sectors \(= 3\)

Therefore, probability of getting a green sector \(\begin{align} = \frac{3}{5}  \end{align}\)

Total number of blue sectors \(= 1\)

Total number of non-blue sectors \(= 5 – 1 = 4\)

Therefore, probability of getting a non-blue sector \(\begin{align} = \frac{4}{5}\end{align}\)

  
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