There are 8 boys and 4 girls in a lift. What is the proba...
There are 8 boys and 4 girls in a lift. What is the probability that the first person who steps out of the lift will be a boy?
16
14
23
12
Correct answer is C
Total number of people in the lift = 8 boys + 4 girls
= 12 people
probability that a boy comes out = 812 = 23
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