Question

a bag contains 6 red balls and 5 blue balls. one ball is draw at random. what is the probability of getting a blue ball?​

Answer 1

Answer:

Probability of getting a blue ball = 5/11

⋆SOLUTION⋆

Number of red balls in the bag = 6

Number of blue balls in the bag = 5

Total Number of balls in the bag = 6 red balls + 5 blue balls = 11 balls

$\red\bigstar \boxed{\sf Probability \: of \: an \:event = \dfrac{ Number \: of \:favorable\:outcomes}{Total \:Number \:of \:outcomes} }$

Here,

Number of favorable outcomes = Number of blue balls = 5

Total Number of outcomes = Total Number of balls in the bag = 11

∴

$\sf Probability \: of \: getting \: a \: blue \: ball = \dfrac{5}{11}$

QUESTION FOR PRACTISE

1) A bag contains 18 bulbs of which 5 are fused , if a bulb is drawn at random . Find the probability that the bulb drawn is not fused?

Answer (for checking ) -≻ 13/18

2) A container has 12 oranges in it , out of which 8 are ripen . If an orange is drawn at random . What is the probability that the orange is ripe?

Answer (for checking ) -≻ 8/12 = 2/3

3) Two dice are thrown simultaneously , find the probability of obtaining the sum of the two numbers obtained as prime number ?

Answer (for checking ) -≻ 5/12