Politicians's Claim!!

This topic has expert replies
User avatar
Master | Next Rank: 500 Posts
Posts: 407
Joined: Tue Jan 25, 2011 9:19 am
Thanked: 25 times
Followed by:7 members

Politicians's Claim!!

by Ozlemg » Sun Jul 10, 2011 9:47 am
If the forest continues to disappear at its present pace, the koala will approach extinction," said the biologist. "So all that is needed to save the koala is to stop deforestation," said the politician.

Which one of the following statements is consistent with the biologist's claim but not with the politician's claim?

(A) Deforestation continues and the koala becomes extinct.
(B) Deforestation is stopped and the koala becomes extinct.
(C) Reforestation begins and the koala survives.
(D) Deforestation is slowed and the koala survives.
(E) Deforestation is slowed and the koala approaches extinction


Why not E correct?

OA B
Last edited by Ozlemg on Sun Jul 10, 2011 11:57 pm, edited 1 time in total.
The more you suffer before the test, the less you will do so in the test! :)
Source: — Critical Reasoning |

Senior | Next Rank: 100 Posts
Posts: 83
Joined: Sat May 28, 2011 4:16 am
Location: England
Thanked: 3 times
Followed by:1 members
GMAT Score:700

by mriiidula » Sun Jul 10, 2011 9:54 am
I think its D..whats the OA?
Follow my GMAT Journey here:
https://magicalmri.blocked

Senior | Next Rank: 100 Posts
Posts: 67
Joined: Thu Jun 26, 2008 8:34 am
Location: india
Thanked: 1 times

by dinaroneo » Sun Jul 10, 2011 5:01 pm
IMO :C

Koala Extinction ('KE') (Suficient condition) --> Deforestation('D') (Necessary Condition)

Contrapositive of this:

D(Negated) --> KE(Negated)
D(Negated)=>Reforestation
KE(Negated)=>Koala's survival

Whats the OA?