Consider the following statement: "We shall go either for a picnic or for trekking". Which of the following, if true, would falsify this claim?
- AWe go for a picnic but not for trekking
- BActivities such as picnic and trekking are encouraged by the health authorities
- CWe go for trekking and not for picnic
- DWe do not go either for picnic or for trekkingCorrect
Explanation
The original statement "We shall go either for a picnic or for trekking" means that at least one of these activities will happen. It allows for going only for a picnic, only for trekking, or for both.
To falsify this claim, the only scenario is if neither of the activities happens.
Let's analyze the options: A) We go for a picnic but not for trekking: This scenario is consistent with the original claim (since we go for a picnic). It does not falsify it. B) Activities such as picnic and trekking are encouraged by the health authorities: This statement is irrelevant to whether "we" go for either activity. It does not falsify the claim. C) We go for trekking and not for picnic: This scenario is consistent with the original claim (since we go for trekking). It does not falsify it. D) We do not go either for picnic or for trekking: This means we neither go for a picnic nor for trekking. This directly contradicts the original claim that we will go for "either... or". Therefore, this statement falsifies the claim.
The final answer is D.

Related questions
More UPSC Prelims practice from the same subject and topic.
- Prelims 2016CSATLogical Reasoning
A ate grapes and pineapple; B ate grapes and oranges; C ate oranges, pineapple and apple; D ate grapes, apple and pineapple. After taking fruits, B and C fell sick. In the light of the above facts, it…
- Prelims 2016CSATLogical Reasoning
Consider the following statements. 1. The rate of population growth is increasing in the country 2. The death rate is declining faster in the country compared to birth rate 3. The birth rate is declin…
- Prelims 2016CSATLogical Reasoning
There were 50 faculty member comprising 30 males and the rest females. No male faculty member knew music, but many of the female faculty members did. The Head of the institution invited six faculty me…
- Prelims 2016CSATLogical Reasoning
There are five persons in a group - P, Q, R, S and T. The group has one doctor, one lawyer and one artist. P and S are unmarried students. T is a man married to one of the group members. Q is the brot…
- Prelims 2016CSATLogical Reasoning
Consider the following statements: 1. Either A and B are of the same age or A is older than B 2. Either C and D are of the same age or D is older than C 3. B is older than C Which of the following con…
- Prelims 2016CSATLogical Reasoning
The nature of the legal imperatives in any given state corresponds to the effective demands that state encounters, and that these, in their turn, depend, in a general way, upon the manner in which eco…