Latest general Aptitude Question SOLUTION: Out of a box that contains 4 black and 6 white balls, three are randomly chosen. What is the probability that all three will be black?

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(#M40009534) GENERAL question Keep an EYE

Out of a box that contains 4 black and 6 white balls, three are randomly chosen. What is the
probability that all three will be black?

Asked In general Devendra Marghade (12 years ago)

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Aman  (12 years ago)

probability that all three will be black = (4/10)*(3/9)*(2/8) = 1/30

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Vignesh  (12 years ago)

1/30 is the probability that all three will be black.

Total number of balls = 4Black + 6White = 10balls

Out of 10,
Probability of 1st ball will be black = 4/10= 2/5
Probability of 2nd ball will be black = 3/9 = 1/3
Probability of 3rd ball will be black = 2/8 = 1/4

Probability of all three balls will be black = (2/5)*(1/3)*(1/4) = 1/30

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hemant  (12 years ago)

(4c3)/(10c3)

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