Question

There are 2 red balls,6 blue balls and 5 green balls in a bag. A ball is drawn from the bag without looking into the bag.What is the probability of getting a non blue ball?​

Answer 1

$\large\underline{\underline{\red{✴{\pmb{\sf{\:Given :-}}}}}}$

• ➬ No. of red balls = 2
• ➬ No. of blue balls = 6
• ➬ No. of green balls = 5

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$\large\underline{\underline{\red{✴{\pmb{\sf{\:To \: Find :-}}}}}}$

• ➬ What is the probability of getting a non-blue ball ?

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$\large\underline{\underline{\red{✴{\pmb{\sf{\:Solution :-}}}}}}$

❒ We know that :

$\large\blue\bigstar{\underline{\boxed{\color{orange}{\sf{Probability = \dfrac{F}{T}}}}}}$

➢Here :

$\begin{gathered} \pink{\pmb{\begin{gathered}\begin{gathered}\bf\:\rm :\longmapsto\: \color{cyan} Outcomes \: \begin{cases} &\sf{Favourable \: outcomes{\small_{(Non - blue \: balls)}} = 7} \\ \\ &\sf{Total \: outcomes{\small_{(Total \: balls)}} = 13 } \end{cases}\end{gathered}\end{gathered}}}\end{gathered}$

❒ Now Probability :

${:\implies{\sf{Probability = \dfrac{F}{T}}}}$

$\large\orange{:\longmapsto{\sf{ S.I = {\green{\underline{\sf{ \dfrac{7}{13}}}}}}}}$

❒ Therefore :

❝ Probability of getting non-blue balls is 7/13 . ❞

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