AAPL wrote:GMAT Paper Tests
How many numbers do the sets \(S\) and \(T\) have in common?
1) \(S\) is a set of 10 numbers.
2) \(T\) is a set of 100 numbers.
OA E
Since Statement 1 does not provide any information about Set T and Statement 2 does not provide any information about Set S, each of them alone is insufficient.
Even together they are insufficient.
Case 1: Say Set S: {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}; and Set T: {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, ..., 100}; the answer is 10.
Case 2: Say Set S: {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}; and Set T: {11, 12, 13, ..., 110}; the answer is 0.
No unique answer. Insufficient.
The correct answer:
E
Hope this helps!
-Jay
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