# JNU ECOM 2011 QUES 33-46 Classic List Threaded 6 messages Open this post in threaded view
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## JNU ECOM 2011 QUES 33-46

 Questions 33-36 are on passage, which i am sure need not be discussed. QUES 37 In terms of current annual human caused greenhouse gas emissions a) the US is responsible for both the highest per capita & total emissions. b) China is responsible for the highest total ( but not per capita) emissions. c) China is responsible for highest per capita & total emissions. d)the US is responsible for the highest total ( but not per capita) emissions. Answer-bQUES 38 Utensils worth Rs 1,500 are produced with steel costing Rs 750 and other materials costing Rs 150. Labour cost of producing these utensils is Rs 150 and depreciation of machinery is 0. The value added in producing these utensils is: a) Rs 450 b) Rs 600 c) Rs 750 d) None of the above Answer-bQUES 39 During the last two decades of the 20th century , India's labour force has grown at the rate of: a) 1.5% per annum b) 2.5% per annum c) 3.5% per annum d) 4.5% per annum Answer-QUES 40 Answer-bQUES 41 Answer-cQUES 42 Let P(n,m) be a property about two integers n and m. If we want to disprove the claim that 'for every integer n, there exists an integer m such that P(n,m) is true', then we need to prove that a) there exist integers n, m such that P(n,m) is false. b) there exist an integer m such that P(n,m) is false for all integers n. c) there exists an integer n such that P(n,m) is false for all integers m. d) for every integer n, there exists an integer m such that P(n,m) is false. Answer-cQUES 43 Let X, Y, Z be statements. Suppose we know that ' X is true implies Y is true' , and 'X is false implies Z is true'. If we know that Z is false, then we can conclude that a) both X and Y are true b) both X and Y are false c) X is true and Y is false d) X is false and Y is true Answer-aQUES 44 Answer-bQUES 45 Suppose one wishes to prove that "if some X are Y, then some Z are W". To do this, it would suffice to show that: Answer-cQUES 46 The annual average rate of employment generation in India during the decade of 1990s, compared to 1980s, was approximately a) thrice b) twice c) same d) half Answer-
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## Re: JNU ECOM 2011 QUES 33-46

 hi... Have you any idea about how to solve the Q.43,44
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## Re: JNU ECOM 2011 QUES 33-46

 @ jack For ques 43: Given:X is true => Y is true. X is false => Z is true. Z is false. If Z is false is given, we can conclude that X is true. And now X is true implies Y is true (given). So, both X & Y are true. part - a. For ques 44 : X => Y, Y => Z Its given that Y is false. Now , Y is false , we cant conclude anything about Z . Z could be true/ false. But X implies Y . And Y is false , then it must be that X is false. ( X=> Y, negation of this ~X=> ~Y)
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## Re: JNU ECOM 2011 QUES 33-46

 plz explain 45?