the probability of a question calculated two varieties X upon 12. if the probability of a question calculated to be right is 2 upon 3 then X equal to
a, 2
b, 3
C, 4
d, 6
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Answer:
probability=x/12
given probability=2/3 so x/12=2/3
by cross multiply 3x=24
x=24/3
=8
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