Question

A bag has 2 yellow marbles and 16 blue marbles. Half of the blue marbles are made of glass. A marble is selected at random from the bag. What is the

probability that it is a blue, glass marble?
Write your answer as a fraction in simplest form.

Answer 1

• Answer:

Hence, The probability of selecting a Blue, Glass Marble is:

P = 4/9

• Explanation:

• Make a plan:

In this question, we need to calculate the probability of selecting a blue, glass marble from the bag.

• We can use the formula of probability to solve this problem.

P(A) = n(A)/n(S)

• Solve the problem:

• Half of the Blue Marble is made of Glass;

We can get the number of marbles in the bag:

16/2 = 8

• The total number of marbles in the bag is:

2 + 16 = 18

• The probability of selecting a Blue, Glass Marble is:

P = 8/18 = 4/9

• Draw the conclusion:

Hence, P = 4/9 is the probability of selecting a Blue, Glass Marble.

Hope it helps!