Comet A is seen near the Earth every 12 years while comet B every 20 years. If both comets were observed in 1979, for how many years do we have to wait to see the two comets together again? (Assume now is 2004)
GMAT Daily Deals
- Incredible savings from Veritas Prep-save 10% on any course and receive a free $700 bonus offer. Learn more!
- Get Stacy Blackman Consulting's 2011/2012 essay guides for HBS, Standford, Columbia & Kellogg. Buy now!
Choi: All other factors being equal, children whose parents earned doctorates are more likely to earn a doctorate than children whose parents did not earn doctorates.
Hart: But consider this: Over 70 percent of all doctorate holders do not have a parent that also holds a doctorate.
Which of the following is the most accurate evaluation of Hart's reply?
(A) It establishes that Choi's claim is an exaggeration.
(B) If true, it effectively demonstrates that Choi's claim cannot be accurate.
(C) It is consistent with Choi's claim.
(D) It provides alternative reasons for accepting Choi's claim.
(E) It mistakes what is necessary for an event with what is sufficient to determine that the event will occur.
Answers to the questions: E
For explanations please see these threads: math
Like these questions? Get the GMAT Club question collection: online at GMAT Club OR on your Kindle OR on your iPhone/iPad