Question

An urn contains 10 black and 5 white balls. Two balls are drawn from the urn one after the
other without replacement. What is the probability that both drawn balls are black?
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Answer 1

Answer:

2/15

Step-by-step explanation:

Total Number of Balls =White balls + Black balls

=5+10

=15

2 balls are drawn out

Therefore, P(E)=2/15

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Answer 2

black balls are 10

and your white balls are 5