Metallurgical Engineering > GATE 2021 > Probability
A box contains 15 blue balls and 45 black balls. If 2 balls are selected randomly, without replacement, the probability of an outcome in which the first selected is a blue ball and the second selected is a black ball, is
A
3/16
B
45/236
C
1/4
D
3/4

Correct : b

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probability selection balls GATE Metallurgical Engineering 2021 blue and black balls probability metallurgical engineering gate selecting balls probability GATE 2021 Metallurgy ball probability problem selection without replacement

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