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BMAT考试:能力与技巧练习练习
A school has 120 pupils, in five year groups. Thefollowing table gives some details about the numbers of boys and girls in eachyear group:
There is a probability of 1 in 12 that a boyselected at random is in Year 4.
What is the probability that a Year 4 pupilselected at random is a boy?
A 1 in 2
B 1 in 12
C 3 in 5
D 3 in 8
E 5 in 8
F 5 in 12
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