# IAS Prelims 2013 Paper 2 CSAT Solved (Part 1 of 18)

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Directions for the following 2 (two) items:

Read the following passage and answer the two items that follow. Your answers to these items should be based on the passage only.

Passage

Ecological-research over the last quarter of the century has established the deleterious effects of habitat fragmentation due to mining, highways and such other intrusions on forests. When a large block of forests gets fragmented into smaller bits, the edges of all these bits come into contact with human activities resulting in the degradation of the entire forests. Continuity of forested landscapes and corridors gets disrupted affecting several extinction-prone species of wildlife. Habitat fragmentation, is therefore considered as the most serious threat to biodiversity conservation. Ad hoc grants of forest lands to mining companies coupled with rampant, illegal mining is aggravating this threat.

What is the central focus of this passage?

Illegal mining in forests

Extinction of wildlife

Conservation of nature

Disruption of habitat

Answer: d

What is the purpose of maintaining the continuity of forested landscapes and corridors?

Preservation of biodiversity.

Management of mineral resources.

Grant of forest lands for human activities.

Select the correct answer using the codes given below:

1 only

1 and 2

2 and 3

1, 2 and 3

Answer: a

In a rare coin collection, there is one gold coin for every three non-gold coins. 10 more gold coins are added to the collection and the ratio of gold coins to non-gold coins would be 1: 2. Based on the information; the total number of corns in the collection now becomes

90

80

60

50

Answer: a

A gardener has 1000 plants: He wants to plant them in such a way that the number of rows and the number of columns remains the same. What is the minimum number of plants that he needs more for this purpose?

14

24

32

34

Answer: b

A sum of RS. 700 has to b used to give seven cash prizes to the students of a school for their overall academic performance. If each prize is RS. 20 less than its preceding prize, what is the least value of the prize?

RS. 30

RS. 40

RS. 60

RS. 80

Answer: b

Out of 120 applications for a post, 70 are male and 80 have a driver's license. What is the ratio between the minimum to maximum number of males having driver's license?

1 to 2

2 to 3

3 to 7

5 to 7

Answer: c

In a garrison, there was food for 1000 soldiers for one month. After 10 days, 1000 more soldiers joined the garrison. How long would the soldiers be able to carry on with the remaining food?

25 days

20 days

15 days

10 days

Answer: d

The tank-full petrol in Arun's motor-cycle lasts for 10 days. If he starts using 25% more everyday, how many days will the tank-full petrol last?

5

6

7

8

Answer: d

A person can walk a certain distance and drive back in six hours. He can also walk both ways in 10 hours. How much time will he take to drive both ways?

Two hours

Two and a half hours

Five and a half hours

Four hours

Answer: a