MBA Exam

From a deck of 52 cards, two cards are drawn at random without replacement. If one card is further drawn from the pack, what is the probability that it will be a Queen?

1) 1/4
2) 1/13
3) 1/26
4) 1/17

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MBA Other Question
Abiologist catches a random sample of 60 fish from a lake, tags them andreleases them. Six months later she catches a random sample of 70 fishand finds 3 are tagged. She assumes 25% of the fish in the lake on theearlier date have died or moved away and that 40% of the fish on thelater date have arrived (or been born) since. What does she estimate asthe number of fish in the lake on the earlier date?

1) 420
2) 560
3) 630
4) 720
5) 840
 x, y, and z are positive real numbers such that x + y + z = a where ‘a’ is a constant. Find the maximum value of (a – x) (a – y) (a – z)

1) 1
2) 2
3) 3
4) 4
5) 5