CR2

This topic has expert replies
Source: — Critical Reasoning |

User avatar
GMAT Instructor
Posts: 1035
Joined: Fri Dec 17, 2010 11:13 am
Location: Los Angeles, CA
Thanked: 474 times
Followed by:365 members

by VivianKerr » Sat Jan 22, 2011 6:38 pm
Conclusion: If more non-mice, then more larvae ticks would feed on them, therefore fewer ticks with bacteria.

Evidence: Ticks get bacteria from mice. Non-mice don't have the bacteria.

Assumptions: Tick larvae don't prefer the mice to the non-mice; ticks have to feed on something

Question Rephrase: What would most strongly weaken or strengthen the argument?

Prediction: To strengthen, something showing that there is no preference and that the ticks have to feed. To weaken, something showing the ticks will seek out the mice over the non-mice species, or that the ticks don't have to feed at all.

The correct answer is (B). Is it important that the ticks have something to feed on?
Vivian Kerr
GMAT Rockstar, Tutor
https://www.GMATrockstar.com
https://www.yelp.com/biz/gmat-rockstar-los-angeles

Former Kaplan and Grockit instructor, freelance GMAT content creator, now offering affordable, effective, Skype-tutoring for the GMAT at $150/hr. Contact: [email protected]

Thank you for all the "thanks" and "follows"! :-)