Bunuel
Some people in the field of research, including Casper, are very successful. Successful individuals have always been diligent and devoted to their work. To be very successful, the two most important qualities a person must have are being hardworking and brilliant. Both Casper and Karen are in the field of research and Karen is the more hardworking and brilliant of the two.
Select for
Must be true the statement that must be true given the information provided and select for
Must be false the statement that must be false given the information provided. Make only two selections, one in each column.

Official Solution:
Must be true • Some individuals in the field of research are brilliant
We know that some individuals in the field of research, including Casper, are very successful. Since all very successful individuals are brilliant, it follows that some individuals in the field of research are brilliant. Therefore, this must be true.
Must be false• Casper is hardworking but not brilliant.
We know that all very successful individuals are both hardworking and brilliant. Since Casper is very successful, he must be both hardworking and brilliant. This makes the statement that Casper is hardworking but not brilliant must be false.
Other options • Karen is very successful.
Karen is hardworking and brilliant. However, we are told that all very successful individuals are hardworking and brilliant, but not that all hardworking and brilliant individuals are very successful. Therefore, this cannot be determined.
• Hardworking and brilliant people often achieve great success.
While we know that being hardworking and brilliant are important qualities for achieving great success, we are not given information about the rate of success among hardworking and brilliant people. Therefore, this cannot be determined.
• Karen has achieved more success than Casper.
Even though Karen is described as more hardworking and brilliant than Casper, this does not guarantee that Karen has achieved more success than Casper. Therefore, this cannot be determined.
Correct answer: Must be true
"Some individuals in the field of research are brilliant. "Must be false
"Casper is hardworking but not brilliant."Attachment:
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