GATE CS 2014 Set 2 — Question 7

MCQ+2 / -0.67MediumDeduction & InductionAnalytical AptitudeGeneral Aptitude

General Aptitude → Analytical Aptitude → Deduction & Induction

Last updated 5 September 2026

Question

The 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?

Correct answer (D) The number of people with malarial fever (also contracted from mosquito bites) has increased this year Solution The conclusion is that measures to control the mosquito population have failed, based on the increase in dengue cases. (A) If cases are imported, the local mosquito control may not have failed. This contradicts the conclusion. (B) If the increase is due to better reporting, the actual number of cases might not have increased. This contradicts the conclusion. (C) If the increase is due to better detection, it doesn't imply a failure in control. This contradicts the conclusion. (D) Malaria is also spread by mosquitoes. An increase in malaria cases supports the idea that the mosquito population has increased or control measures have failed. This statement does not contradict the conclusion. Turn this into a strength. Explore AI-powered practice and doubt support with Success Tracker.

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Correct answer (D) The number of people with malarial fever (also contracted from mosquito bites) has increased this year Solution The conclusion is that measures to control the mosquito population have failed, based on the increase in dengue cases. (A) If cases are imported, the local mosquito control may not have failed. This contradicts the conclusion. (B) If the increase is due to better reporting, the actual number of cases might not have increased. This contradicts the conclusion. (C) If the increase is due to better detection, it doesn't imply a failure in control. This contradicts the conclusion. (D) Malaria is also spread by mosquitoes. An increase in malaria cases supports the idea that the mosquito population has increased or control measures have failed. This statement does not contradict the conclusion.

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