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DSSSB TGT Coding and Decoding — practice questions — page 3

Explore 82 free Coding and Decoding questions in DSSSB TGT Reasoning. Open each question or exercise to read its content, reference answers and available explanation.

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Coding and Decoding questions and exercises with answers

Showing questions 61–82 of 82.

Statements: All pens are books. Some books are pencils. Conclusion which definitely follows:Read the answer and worked solution →If today is Wednesday, what day will it be after 100 days?Read the answer and worked solution →Match each proposition form to its letterRead the answer and worked solution →Universal or particular? Affirmative or negative?Read the answer and worked solution →Affirmative or negative?Read the answer and worked solution →Naming the formRead the answer and worked solution →True or false: what conversion allowsRead the answer and worked solution →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

Statements: All pens are books. Some books are pencils. Conclusion which definitely follows:

  1. Some pens may be pencils
  2. All books are pens
  3. All pencils are pens
  4. No pen is a pencil
Show answer and solution

Correct answer: A. Some pens may be pencils

From 'all pens are books' and 'some books are pencils', we cannot conclude any pen is definitely a pencil — but it is possible. **So only 'some pens may be pencils' is a valid (possibility) conclusion.**

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If today is Wednesday, what day will it be after 100 days?

  1. Thursday
  2. Sunday
  3. Saturday
  4. Friday
Show answer and solution

Correct answer: D. Friday

$100 \div 7 = 14$ remainder 2. Two days after Wednesday is Friday.

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Match each proposition form to its letter

Read exercise and reference answers
Matching pairs
  1. Left
    A
    Right
    Universal Affirmative: All S is P
  2. Left
    E
    Right
    Universal Negative: No S is P
  3. Left
    I
    Right
    Particular Affirmative: Some S is P
  4. Left
    O
    Right
    Particular Negative: Some S is not P
The four classical forms. Syllogism questions in competitive papers are built entirely from these. Source: Logic: Deductive and Inductive, Carveth Read (1898), public domain.

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