Question

Choose the correct option.
Ajar contains 5 white, 8 red, 2 blue and 3 balls.Find the probability that a ball drawn
at random is red or blue?

Answer 1

Answer: 5/9

Step-by-step explanation:

Probability that a ball drawn is red / blue:

Probably is always defined as number of favourable outcomes divided by toal number of outcomes.

Favourable outcomes: The ball must be red/ blue

Number of red balls : 8

Number of blue balls : 2

Total favourable outcomes : 8+2 = 10

Total outcomes: The ball can either be white, red, blue or some other colour.

Number of red balls : 5

Number of red balls : 8

Number of blue balls : 2

Number of other colour balls : 3

Total outcomes : 5+8+2+3 = 18

Therefore,

Probability = 10/18 = 5/9