Entry checkpoint: a separate sample with explanations after your response.
Paper packet. Every task here also exists on screen, where it is checked automatically; answers written on paper are not assessed by Nydus. When you are back at a device, enter your answers there.
1. What you will learn
Entry checkpoint: attempt the sufficiency sample before instruction. Use the target of each question to decide which information matters, and record your initial response before reading its explanation.
2. Practice
For real x, is x=3?
(1) (x-3)(x+2)=0.
(2) x is an integer.
Statement (1) alone is sufficient; statement (2) alone is not.
Statement (2) alone is sufficient; statement (1) alone is not.
Together the statements are sufficient, but neither alone is sufficient.
Each statement alone is sufficient.
Even together the statements are not sufficient.
3. Practice
For positive a and b, what is a/b?
(1) a=4b.
(2) a-b=9.
Statement (1) alone is sufficient; statement (2) alone is not.
Statement (2) alone is sufficient; statement (1) alone is not.
Together the statements are sufficient, but neither alone is sufficient.
Each statement alone is sufficient.
Even together the statements are not sufficient.
4. Practice
What is the range of a list of six numbers?
(1) The largest number is 18.
(2) The smallest number is 4.
Statement (1) alone is sufficient; statement (2) alone is not.
Statement (2) alone is sufficient; statement (1) alone is not.
Together the statements are sufficient, but neither alone is sufficient.
Each statement alone is sufficient.
Even together the statements are not sufficient.
5. What you can do now
Review the sufficiency decisions in this data sufficiency sample. Identify the particular restriction or evidence that changed your answer, and return to the corresponding worked lesson before trying a new case.