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Mathematics
Problem
A bag contains 4 red, 5 blue and 7 green marbles. One marble is drawn at random. Find the probability that the marble drawn is either red or green. a)
9
16
\dfrac{9}{16}
16
9
b)
11
16
\dfrac{11}{16}
16
11
c)
11
32
\dfrac{11}{32}
32
11
d)
7
64
\dfrac{7}{64}
64
7
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