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Nikhil has a bag of marbles that contains exactly 8 green marbles and 6 red marbles. He takes out three marbles successively without replacing any of the marbles.

What is the probability that all three marbles taken out are green in colour?

1 Answer

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The probability that all three marbles taken out are green in color would be 4 / 91

How to find the probability ?

To find the probability that all three marbles taken out are green, you can use the concept of conditional probability.

The probability of the first marble being green is 8/14 because there are 8 green marbles out of a total of 14 marbles. After the first green marble is drawn, there are now 7 green marbles left and a total of 13 marbles left in the bag.

Calculate the overall probability by multiplying these probabilities together:

Probability = (8/14) x (7/13) x (1/2)

Now, calculate the product:

Probability = (4/7) x (7/13) x (1/2)

Probability = 4 / 91

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