# Practice GMAT Questions

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Sentence Correction Questions | Critical Reasoning Questions | Reading Comprehension Questions

- x > 10
- x < 14

**B**

- In order for a statement to be sufficient, it must definitively answer the question (i.e., it must definitively indicate whether x > 15?) For sufficiency to exist, the information in the statement must allow you to answer the question with the same answer every time (either "yes" or "no). The key is not whether the answer is "yes" or "no", but whether the information allows you to answer the same way each time.
- Statement (1) indicates that x > 10. So, x could be 11, 12, 13, 14, 15, 16, 17...
- Since x could be 11, in which case it would not be greater than 15 and the answer to the origial question would be "no", or x could be 17, in which case it would be greater than 15 and the answer to the original question would be "yes", Statement (1) is NOT SUFFICIENT.
- Statement (2) indicates that x < 14. So, x could be 13, 12, 11, 10, 9... Since all the possible values of x permissible by Statement (2) allow you to answer "no" to the question, Statement (2) is SUFFICIENT.

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