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wildlife preserve

by gmat009 » Mon Nov 24, 2008 2:08 pm

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A wildlife preserve is being planned for 3,000 rhinoceroses. The preserve is to contain a total of 10,000 acres of watering area, plus 100 acres of
grazing area for each rhinoceros. If the number of rhinoceroses is expected to increase by 10 percent, how many thousand acres should the preserve have in order to provide for the increased population?
(A) 340
(B) 330
(C) 320
(D) 310
(E) 300

Plz. explain
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by mals24 » Mon Nov 24, 2008 2:20 pm
IMO A

Total area = grazing area + watering area

Grazing area = 3000*100 = 300,000
Rhino population increases by 10% ie by 300
Increase in area = 300,000 + 300*100 = 330,000

Watering area = 10,000

Total area = 340,000

Since we need to know the area in 1000 acres answer = 340,000/1000

340 thousand acres.
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by dmateer25 » Mon Nov 24, 2008 2:22 pm
(3000*1.1) * 100 = 330,000 for grazing

10,000 for water


330,000+10000 = 340,000

I will go with A
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by GMATinsight » Thu Nov 12, 2015 5:10 am
gmat009 wrote:A wildlife preserve is being planned for 3,000 rhinoceroses. The preserve is to contain a total of 10,000 acres of watering area, plus 100 acres of
grazing area for each rhinoceros. If the number of rhinoceroses is expected to increase by 10 percent, how many thousand acres should the preserve have in order to provide for the increased population?
(A) 340
(B) 330
(C) 320
(D) 310
(E) 300

Plz. explain

Total Rhinos =3000
Increase = 10% =300
Total area = Grazing area + Watering area

Total fixed area for watering =10(in thousand acres)
Total area for grazing =300(in thousand acres)
Additional area required for grazing as the no of rhinos increased for 3000 to 3300=30(in thousand acres)
Total area =10+300+30=340(in thousand acres)
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by Scott@TargetTestPrep » Sun Aug 04, 2019 10:25 am
gmat009 wrote:A wildlife preserve is being planned for 3,000 rhinoceroses. The preserve is to contain a total of 10,000 acres of watering area, plus 100 acres of
grazing area for each rhinoceros. If the number of rhinoceroses is expected to increase by 10 percent, how many thousand acres should the preserve have in order to provide for the increased population?
(A) 340
(B) 330
(C) 320
(D) 310
(E) 300

Plz. explain
With the 10% increase in the population of rhinoceroses, the preserve would have 3,000 x 1.1 = 3,300 rhinoceroses. Therefore, the area of the preserve needs to be :

10,000 + 100 x 3300 = 340,000 acres or 340 thousand acres

Answer: A

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