Question 46

waecmaths question: 

A box contains 5 red, 6 green and 7 yellow pencils of the same size. What is the probability of picking a green pencil at random

Option A: 

$\tfrac{1}{6}$

Option B: 

$\tfrac{1}{4}$

Option C: 

$\tfrac{1}{3}$

Option D: 

$\tfrac{1}{2}$

waecmaths solution: 

$\begin{align}  & \Pr (event)=\frac{no\text{ of expected outcome}}{\text{Total number of possible outcome}} \\ & \Pr (Green)=\frac{6}{18}=\frac{1}{3} \\\end{align}$

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