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voodoo_child
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A jar contains 6 Magenta balls, 3 Tan balls, 5 Gray balls and 7 Turquoise balls. Two balls are chosen from the jar. What is the probability that both balls chosen are Tan?
1) 1/70
2) 2/49
3) 1/21
4) 6/441
5) 1/49
Don't we have to assume that the balls are identical? If they are, then the number of ways of choosing 2 Tan identical balls out of 3 tan balls = 1 (since they are identical, order doesn't matter). Isn't it? ---- My answer was C) Is it a trap? Really confused
If I assume that the balls are not withdrawn "AT A TIME", OA is correct. However, how do I know whether the balls are withdrawn at a time or one by one?
OA A
Source : Veritas
1) 1/70
2) 2/49
3) 1/21
4) 6/441
5) 1/49
Don't we have to assume that the balls are identical? If they are, then the number of ways of choosing 2 Tan identical balls out of 3 tan balls = 1 (since they are identical, order doesn't matter). Isn't it? ---- My answer was C) Is it a trap? Really confused
If I assume that the balls are not withdrawn "AT A TIME", OA is correct. However, how do I know whether the balls are withdrawn at a time or one by one?
OA A
Source : Veritas
