According to a wildlife reintroduction project, exactly four species

Question

According to a wildlife reintroduction project, exactly four species will be reintroduced in one of three regions: Highlands, Wetlands, or Grasslands. Eight species are under consideration: Wolf, Bison, Otter, Lynx, Bear, Eagle, Elk, and Sheep. The reintroduction follows these rules:

Eagle can be reintroduced only if the project is not in the Wetlands. 
 Bear can be reintroduced only if Bison is also reintroduced. 
 Bison can be reintroduced only if the project is in the Highlands or Wetlands. 
 Wolf can be reintroduced only if the project is in the Highlands. 
 Of the three species Otter, Lynx, and Sheep, exactly one may be reintroduced.

Based on the information above, and assuming Bear is reintroduced and the project is not in the Highlands, in the first column select the species that must also be reintroduced, and in the second column select the species that will not be reintroduced. Make only two selections, one in each column.

Bunuel · Accepted Answer

We are told that  Bear is reintroduced  and that the project is  not in the Highlands . Let’s apply the rules one by one:

If Bear is reintroduced, then  Bison must also be reintroduced . So Bear and Bison are both in. 
 Since the project is not in the Highlands,  Wolf cannot be reintroduced . 
 Bison can only be reintroduced if the project is in Highlands or Wetlands. Because Highlands is excluded, the project must be in the  Wetlands . 
 If the project is in the Wetlands, then  Eagle cannot be reintroduced .

At this point, the situation is:

Bear and Bison are in. 
 Wolf and Eagle are out.

That leaves four species still under consideration:  Otter, Lynx, Sheep, and Elk .

By rule, exactly one of Otter, Lynx, and Sheep can be reintroduced. This provides the third species. 
 Since four species must be reintroduced in total, the only possible fourth species is  Elk .

Therefore:

Must be reintroduced : Elk 
  Will not be reintroduced : Eagle

I29-48

findingmyself · Answer

We need to find 4 species of animals which will be introduced ONLY in one of the three regions.

Question is given with the fact that Bear is reintroduced and the project is not in the Highlands

Point 1: If Bear is there, Bison should also be there since we have the condition that Bear can be reintroduced only if Bison is also reintroduced.

Point 2: If Bison is reintroduced, It has to be either in Highland or Wetland. Highland as an option is out (Because as per question, the Bear is reintroduced and the project is not in the Highlands) leaving the only place which is wetland

Conclusion: Bear+Bison selected and location is Wetland

Further deriving: 
 
 Eagle cannot be introduced because Eagle can be reintroduced only if the project is not in the Wetlands.   We CANNOT have EAGLE   
 So is the case with Wolf which can be reintroduced only if the project is in the Highlands.

We are left with following: Elk, Otter, Lynx and Sheep. Since from Otter, Lynx, and Sheep, exactly one may be reintroduced.   We MUST have ELK

The final 4 is Elk, Bear, Bison and One among (Lynx, Sheep, Otter)

Dereno · Answer

As per question :   EXACTLY 4 species   are Introduced in   3 REGIONS   - Highland, Wetland and Grass land.

Eight species are under consideration: Wolf, Bison, Otter, Lynx, Bear, Eagle, Elk, and Sheep.

Rules:

1) Eagle Yes if the project region is NOT wetland , Hence, the regions can be EITHER Highland OR Grassland.

2) IF Bison is introduced ——-> then, BEAR can be introduced.

3) Bison introduction only in areas Highland and Wetland. So, Bison is not introduced in wetland.

4) Wolf only in highland, so wolf CANNOT be introduced in WET, GRASSLAND.

5) Lastly, out of the three ( Otter, Lynx, Sheep) ONLY ONE is introduced.

question criteria :   assuming Bear is reintroduced and the project is not in the Highlands

so, In HIGHLAND : as per 4 ( WOLF ), as per 3(  Bison ), based on 2 (  BEAR  ) , and as per 1 (  EAGLE  ). The quota of 4 per region is filled for Highland.

For WETLAND :

The animal choices are :  Bison, and Bear.

Eagle and wolf  are NOT included.

Amongst three ( Otter, Lynx and Sheep) only one can be choosen.

Out of 7 animals, ONLY 3 slots are filled for WETLANDS. The last slot can be allotted for  ELk .

HIGHLAND   
  WETLAND   
  GRASSLAND  
 
    WOLF  
  Yes 
  No 
  No 
 
    BISON   
  Yes 
  Yes 
  No 
 
    OTTER   
  No

LYNX  
  No

BEAR  
  Yes 
  Yes 
  No 
 
    EAGLE   
  Yes 
  No 
  Yes 
 
    SHEEP  
  No

ELK   
  No  
   Yes

Can Be introduced : ELK

Cannot Be Introduced: EAGLE.

AbhishekP220108 · Answer

As per the question stem and looking at the conditions given, lets pen down all that we know for sure

given that only 4 species out of 8 has to be introduced in one of the 3 given regions, question stem mentions bear is reintroduced and it is not the highland region. What we know from conditions mentioned is bear is reintroduced only bison is there, so bison has to be there and we got 2 species, 2nd we know bison will be in either highland or wetland and as per given info highland is out so, the region is wetland, so confirmed, wetland region.

Now look at the table, in options Eagle is given, and we know that eagle will not be reintroduced in wetland region, so we got 2nd column choice its  Eagle  which will not be reintroduced.

Now looking at the first column, the left options are otter, lynx, elk and sheep, we already got 2 species for the, also as per condition out of otter, lynx,and sheep only one will be reintroduced, so, the left spot is for  elk , bingo.

According to a wildlife reintroduction project, exactly four species

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Must be reintroduced	Will not be reintroduced
		Otter
		Lynx
		Eagle
		Elk
		Sheep

	HIGHLAND	WETLAND	GRASSLAND
WOLF	Yes	No	No
BISON	Yes	Yes	No
OTTER	No
LYNX	No
BEAR	Yes	Yes	No
EAGLE	Yes	No	Yes
SHEEP	No
ELK	No	Yes

GMAT Two-part Analysis (TPA) Questions

According to a wildlife reintroduction project, exactly four species

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