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Mathematics
Problem
A bag contains 5 black and 3 red balls. One ball is drawn, replaced, and then a second ball is drawn. Find the probability that both balls drawn are black. a)
25
56
\dfrac{25}{56}
56
25
b)
25
64
\dfrac{25}{64}
64
25
c)
20
64
\dfrac{20}{64}
64
20
d)
20
56
\dfrac{20}{56}
56
20
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