This Data Sufficiency question, from Session 4, Extra Practice HW 3 (Sets and Rates), has stumped 50% of Knewton students so far. How would you tackle it?
Give it a shot, then share your answers, questions, and thought processes in the comments below. If you’re in our GMAT class now, don’t forget to add your teacher name and session (e.g., Zwelling, MW 1:30)!
7/8 of the students at Edgemont High play a sport in the fall semester. What fraction of the students play a sport in neither the fall nor the spring semester?
1. 280 students play a sport in the spring semester.
2. 2/7 of the students who do not play a sport in the fall semester do not play a sport in the spring semester.[A] Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.
[B] Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.
[C] BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.
[D] EACH statement ALONE is sufficient.
[E] Statements (1) and (2) TOGETHER are NOT sufficient.
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Read the full article: Knewton Challenge Discussion – Oct. 11, 2010
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