GATE CSE 2014 Set 2 | Question: GA-7

Question

Number of people diagnosed with dengue fever (contracted from the bite of a mosquito) in North India is twice the number diagnosed last year. Municipal authorities have concluded that measures to control the mosquito population have failed in this region. 

Which one of the following statements, if true, does not contradict this conclusion?

• A. A high proportion of the affected population has returned from neighbouring countries where dengue is prevalent
• B. More cases of dengue are now reported because of an increase in the Municipal Office's administrative efficiency
• C. Many more cases of dengue are being diagnosed this year since the introduction of a new and effective diagnostic test
• D. The number of people with malarial fever (also contracted from mosquito bites) has increased this year

Comments

May anyone explain why is (D) the answer ?

Answer 1

Here we have to take care that questioner is asking about which statement 'supports' our paragraph.It's not like 'which statement can be concluded from paragraph.

None of the options can be concluded from the paragraph.Option A,B,C are invalid while option D also can't be concluded as both Malaria and Dengue are caused by different kinds of mosquitoes so we can't say like if some region is affected by malaria then it would be affected by dengue.

But does our option D support our paragraph? Yes! because when there is malaria in some region then certainly there would be sufficient quantity of mosquitoes and that's Municipal authorities also concluded.