GATE Civil Engineering (CE) 2018 Shift 2 Solved Paper

Question : 20 of 65

Marks: +1, -0

Probability (up to one decimal place) of consecutively picking 3 red balls without replacement from a box containing 5 red balls and 1 white ball is__________

Your Answer:

Validate

Solution:

Probability,

\ov{P}=\;{5}/{6} × \;{4}/{5} × \;{3}/{4}=\;{1}/{2}=0.5

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