Câu 148: GMAT Section 2: Quantitative

How many keys are found on an average keyboard?(1) There are 20 number keys on an average keyboard.(2) 20% of the keys on the keyboard are number keys.

1. A. Statement (1) BY ITSELF is sufficient to answer the question, but statement (2) by itself is not.
2. B. Statement (2) BY ITSELF is sufficient to answer the question, but statement (1) by itself is not.
3. C. Statements (1) and (2) TAKEN TOGETHER are sufficient to answer the question, even though NEITHER statement BY ITSELF is sufficient. — đáp án hiện tại
4. D. Either statement BY ITSELF is sufficient to answer the question.
5. E. Statements (1) and (2) TAKEN TOGETHER are NOT sufficient to answer the question, requiring more data pertaining to the problem.