Question

A marble is a drawn at random from a box containing 4 black and 5 red marbles.find the probability that the marble is red?​

Answer 1

formula of probability

probability=number of favourable outcomes/number of possible outcomes.

probability=1/5

Answer 2

Step-by-step explanation:

$\huge\underbrace\mathcal\purple{Question}$

A marble is drawn at random from a box containing 4 black and 5 red marbles. Find the probability that the marble is red.

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Here,

No. of black marbles = 4

No. of red marbles = 5

Then, total no. of marbles = 9

Probability of getting the red marbles

= $\large\frac{no.\: of\: red\: marbles}{total\: no.\: of\: marbles}$

= $\large\frac{5}{9}$

$\huge{\red{\therefore}}$ Probability that the marble is red =$\huge\frac{5}{9}$

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