2004
Mathematics
JAMB
A container has 30 gold medals, 22 silver medals and 18 bronze medals. If one medals is selected at the random from the container, what is the probability that it is not a gold medal?
A.
9/35
B.
11/35
C.
4/7
D.
3/7
Correct Answer: 4/7
Explanation
Gold medals = 30 silver medals = 22 Bronze medals = 18/70 P(Gold medals) = 30/70 = 3/7 ∴ P(not Gold medal) = 1 - 3/7 = 4/7
Gold medals = 30 silver medals = 22 Bronze medals = 18/70 P(Gold medals) = 30/70 = 3/7 ∴ P(not Gold medal) = 1 - 3/7 = 4/7THIS WEEK's
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