chlochlo53 chlochlo53

13-01-2023
Mathematics

contestada

A pencil case contains 8 blue and 4 green
pens.
A pen is chosen at random and not
returned, and then a second pen is chosen
at random.
Copy and complete the tree diagram.
What is the probability that the first pen is
green and the second pen is blue?
Give your answer as a fraction in its
simplest form.

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