# An Urn Contains 10 Red and 8 White Balls. One Ball is Drawn at Random. Find the Probability that the Ball Drawn is White. - Mathematics

An urn contains 10 red and 8 white balls. One ball is drawn at random. Find the probability that the ball drawn is white.

#### Solution

$\text{ Number of red balls } = 10$
$\text{ Number of white balls }= 8$
$\text{ Total number of balls in the urn } = 10 + 8 = 18$
$\text{ Therefore, the total number of cases is 18 and the number of favourable cases is 8 }.$
$\therefore P\left( \text{ The ball drawn is white }\right) = \frac{\text{ Number of favourable cases }}{\text{ Total number of cases }} = \frac{8}{18} = \frac{4}{9}$

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#### APPEARS IN

RD Sharma Class 8 Maths
Chapter 26 Data Handling-IV (Probability)
Exercise 26.1 | Q 6 | Page 15