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Question

Given question has main statement followed by four statements. Choose the ordered pair of statements, where the first statement implies the second, and the two statements are logically consistent with the main statement.

She is either a housewife or a working woman

A. She is a housewife

B. She is not a housewife

C. She is a working woman 

D. She is not a working woman

The correct answer is

DA

Understanding the Logical Statements

The core of the question is based on a main logical statement and four individual statements (A, B, C, D). We need to find an ordered pair of statements where the first statement logically implies the second, and both statements are consistent with the main statement.

Main Statement Analysis

The main statement is: "She is either a housewife or a working woman."

Let's represent this using propositional logic:

  • Let $H$ represent "She is a housewife".
  • Let $W$ represent "She is a working woman".

The main statement can be written as a disjunction (OR operation): $$H \lor W$$ This means that at least one of the conditions (being a housewife or being a working woman) must be true. It's possible both are true, or only one is true.

Individual Statement Representation

The individual statements are:

  • A: She is a housewife (Symbolically: $H$)
  • B: She is not a housewife (Symbolically: $\neg H$)
  • C: She is a working woman (Symbolically: $W$)
  • D: She is not a working woman (Symbolically: $\neg W$)

Identifying the Correct Pair (D, A)

The question asks for a pair (X, Y) such that X implies Y ($X \implies Y$) and both X and Y are consistent with the main statement ($H \lor W$). The provided correct option is DA, meaning statement D implies statement A.

Checking Implication: Does D imply A?

Statement D is $\neg W$ ("She is not a working woman").

Statement A is $H$ ("She is a housewife").

We need to check if $\neg W \implies H$ is true, given the main statement $H \lor W$.

Consider the main statement $H \lor W$. If we know that D ($\neg W$) is true, it means $W$ is false. Substituting $W=False$ into the main statement gives:

$$H \lor False$$

For this expression to be true (as the main statement must hold), $H$ must be true.

Therefore, if "She is not a working woman" ($\neg W$) is true, then "She is a housewife" ($H$) must also be true. The implication $\neg W \implies H$ holds true.

Checking Consistency

Now we check if both statements D ($\neg W$) and A ($H$) are consistent with the main statement ($H \lor W$).

If D ($\neg W$) is true and A ($H$) is true, we evaluate the main statement:

$$H \lor W$$

Substituting the truth values (H=True, W=False):

$$True \lor False$$

This evaluates to $True$. Since the result is true, the pair of statements (D and A) is consistent with the main statement.

Evaluating Other Options (Briefly)

Let's briefly consider why other pairs might not fit:

  • AB: Does A imply B ($H \implies \neg H$)? No, being a housewife doesn't imply not being a housewife.
  • CD: Does C imply D ($W \implies \neg W$)? No, being a working woman doesn't imply not being a working woman.
  • AC: Does A imply C ($H \implies W$)? No, being a housewife does not necessarily mean she is also a working woman.

The pair DA fulfills both conditions: the implication holds, and the statements are consistent with the primary condition.

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Important Questions from Critical Reasoning

  1. In this question, a passage is given followed by a statement. Read the passage carefully and judge the statement based on the given passage. 

    Over three lakh birds of different species have arrived in Kashmir valley, according to wildlife warden wetlands of Kashmir, Rouf Zargar. Usually every year, approximately 9 lakh birds migrate to the valley from different cold habitats of the world. Therefore, the valley witnesses new species of birds every year. Birds can go any place depending upon the leading flock. Kashmir is comparatively less cold than their own natural habitat which makes birds to start migrating to the valley in September every year. 

    The birds can help in increasing tourism in the valley. Shikara owner Bashir Ahmad said, "Since tourism in valley is not gaining its pace in valley after 2016 turmoil, these migratory birds can attract tourist from across the globe, if tourism department can project them in planned way, and advertise at big level, definitely it will help to boost tourism in valley" 

    Statement: 

    Birds migrate to Kashmir valley as it is colder compared to their natural habitat.

    Choose the appropriate one from the following options 

    A -The statement is definitely true 

    B -The statement is probably true 

    C -The statement is cannot be determined 

    D -The statement is definitely false

  2. Statement:
    The cross cultural social work implies the interaction between one culture and a client of another culture.
    Conclusion:
    It enables the professional social work for effective intervention of cross cultural diversity management.
  3. Among the following propositions two are related in such a way that one is the denial of the other. Which are those propositions?

    Propositions:

    (a) All elephants are equal to cats

    (b) Some elephants are not equal to cats

    (c) Some elephants are equal to cats

    (d) Few elephants are also equal to cats
  4. Consider the given statement and decide which of the given assumptions is/are implicit in the statement.

     Statement:

     Indians go abroad to get better jobs. 

    Assumptions: 

    1. Indians can get better jobs abroad.

     2. India lacks better job opportunities.

  5. Human beings always have _______.

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