Question

A bag contains 5 yellow and 4 brown pencils. If two pencils are drawn,
what is the probability that the pencils are of the different colour?​

Answer 1

Solution -

Number of yellow pencils = 5

Number of brown pencils = 4

Probability of picking 2 yellow

pencils = 2/9

Probability of picking 2 brown pencils = 2/9

Probability of picking 2 pencils of same colour = 2/9 + 2/9

= 4/9

Answer.