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Delhi Police SI Calendar — practice questions — page 3

Explore 75 free Calendar questions in Delhi Police SI Reasoning. Open each question or exercise to read its content, reference answers and available explanation.

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Calendar questions and exercises with answers

Showing questions 61–75 of 75.

Tap every inference that is actually validRead the answer and worked solution →Complete the four formsRead the answer and worked solution →True or false: what a universal claim coversRead the answer and worked solution →Deduction or induction?Read the answer and worked solution →Order the steps: test a syllogismRead the answer and worked solution →True or false: reasoning from two premisesRead the answer and worked solution →Assertion and reasonRead the answer and worked solution →Two are true, one is notRead the answer and worked solution →Three of these are wrong. Find the one that holds.Read the answer and worked solution →Flip and pair: letter with statementRead the answer and worked solution →Spot the one that does not belongRead the answer and worked solution →Deduction against inductionRead the answer and worked solution →Tap every statement that follows from 'All cats are animals'Read the answer and worked solution →Complete the conversion ruleRead the answer and worked solution →Which reversal is safe?Read the answer and worked solution →

Worked practice questions

Tap every inference that is actually valid

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Questions
  1. Items
    1. Text
      'No S is P' gives 'No P is S'
      Matches the category
      Yes
    2. Text
      'Some S is P' gives 'Some P is S'
      Matches the category
      Yes
    3. Text
      'Some S is not P' gives 'Some P is not S'
      Matches the category
      No
    4. Text
      'All S is P' gives 'All P is S'
      Matches the category
      No
    Category
    A VALID conversion
Reversing a statement is only sometimes allowed, and knowing which cases is the whole skill. Source: Logic: Deductive and Inductive, Carveth Read (1898), public domain.

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Complete the four forms

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Missing parts
  1. Answer
    Affirmative
    Choices
    1. Affirmative
    2. Negative
    3. Particular
  2. Answer
    Negative
    Choices
    1. Negative
    2. Affirmative
    3. Particular
  3. Answer
    Particular
    Choices
    1. Particular
    2. Universal
    3. Total
Complete the statement
A is the Universal {0}, written All S is P. E is the Universal {1}, written No S is P. I is the {2} Affirmative, written Some S is P.
The table as the book prints it. Source: Logic: Deductive and Inductive, Carveth Read (1898), public domain.

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True or false: what a universal claim covers

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Questions
  1. Statement is true
    Yes
    Statement
    'All S is P' makes a claim about every S.
  2. Statement is true
    No
    Statement
    'Some S is P' makes a claim about every S.
  3. Statement is true
    Yes
    Statement
    'No S is P' makes a claim about every S.
  4. Statement is true
    Yes
    Statement
    A universal proposition distributes its subject.
  5. Statement is true
    Yes
    Statement
    'Some' in logic means 'at least one'.
A universal statement speaks about the whole of its subject a particular one does not. Source: Logic: Deductive and Inductive, Carveth Read (1898), public domain.

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