HSC 2026 Logic 2nd Paper MCQ Solution (English Version) - এইচএসসি ২০২৬ যুক্তিবিদ্যা ২য় পত্র MCQ Solution (ইংরেজি ভার্সন)

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HSC 2026 Logic 2nd Paper MCQ Solution (English Version)

HSC 2026 Logic 2nd Paper MCQ Solution (English Version)

1. How many basic rules are followed in logical division?
(a) 1
(b) 2
(c) 3
(d) 4
✓ Answer: (a) 1
2. What type of proposition is established through scientific induction?
(a) Universal affirmative
(b) Universal negative
(c) Universal synthetic
(d) Particular affirmative
✓ Answer: (c) Universal synthetic
3. Which term of the following cannot be defined?
(a) Human
(b) Non-human
(c) Honest human
(d) Educated human
✓ Answer: (b) Non-human
Read the stem below and answer the questions numbers 4 and 5 :
After observing all the trees of a garden it is found that all trees are apple trees. Thus the conclusion is made that "All the trees of the garden are apple trees".
4. What type of inductive inference is mentioned in the stem?
(a) Scientific
(b) Unscientific
(c) Perfect
(d) Parity of reasoning
✓ Answer: (c) Perfect
5. What is absent in the inference of the stem?
i. Inductive leap
ii. Moving from known to the unknown
iii. Universal Proposition
Which one is correct?
(a) i and ii
(b) i and iii
(c) ii and iii
(d) i, ii and iii
✓ Answer: (a) i and ii
6. Which of the following is not possible to make a logical division?
(a) Cognate genus
(b) Infima species
(c) Proximate genus
(d) Proximate species
✓ Answer: (b) Infima species
7. How many forms of scientific explanation are there?
(a) 2
(b) 3
(c) 4
(d) 5
✓ Answer: (b) 3
8. What type of process is classification?
(a) Mental
(b) Practical
(c) Unscientific
(d) Scientific
✓ Answer: (a) Mental
9. What is inductive leap?
(a) Moving from unknown truth to known truth
(b) Moving from known truth to unknown truth
(c) Arrived at false to truth
(d) Arrived at truth to false
✓ Answer: (b) Moving from known truth to unknown truth
10. Which one of the following is included in induction improper?
(a) Perfect
(b) Analogy
(c) Unscientific
(d) Scientific
✓ Answer: (a) Perfect
11. The pioneer of dichotomy is —
(a) Plato
(b) Aristotle
(c) Bentham
(d) Mill
✓ Answer: (c) Bentham
12. Which 'similarity' is considered in case of scientific classification?
(a) Natural
(b) Artificial
(c) Made up
(d) Imaginary
✓ Answer: (a) Natural
13. The term is to be defined is called —
(a) Definiendum
(b) Definiens
(c) Negation
(d) Positive
✓ Answer: (a) Definiendum
14. Which of the following is a method of observation?
(a) Difference
(b) Agreement
(c) Concomitant variation
(d) Residues
✓ Answer: (b) Agreement
15. What is the basis of popular explanation?
(a) Common beliefs
(b) Experience
(c) Scientific knowledge
(d) General rules
✓ Answer: (a) Common beliefs
16. What is called elimination?
(a) To attach something
(b) To assume something
(c) To omit something
(d) Something happens by chance
✓ Answer: (c) To omit something
17. At least how many instances are needed for method of difference?
(a) 2
(b) 3
(c) 4
(d) 5
✓ Answer: (a) 2
Read the stem below and answer the questions numbers 18 and 19 :
The water pipe burst in the extreme cold. Grandmother said, "The pipe burst for the influence of evil soul". But the skilled pipe mechanic said, "The pipe burst due to freezing water in the winter".
18. According to the utterance of grandmother, the hypothesis is —
(a) verifiable
(b) irrelevant
(c) simple
(d) taken on observation of facts
✓ Answer: (b) irrelevant
19. The utterance of the skilled pipe mechanic is —
i. relevant
ii. specific
iii. verifiable
Which one is correct?
(a) i and ii
(b) i and iii
(c) ii and iii
(d) i, ii and iii
✓ Answer: (d) i, ii and iii
20. How many types of analogy are there?
(a) 2
(b) 3
(c) 4
(d) 5
✓ Answer: (a) 2
21. The law of nature, causation and inductive leap =
(a) Scientific induction
(b) Unscientific induction
(c) Analogy
(d) Induction by parity of reasoning
✓ Answer: (a) Scientific induction
22. "Peace is not non-peace", what type of fallacy has occurred in this definition?
(a) Figurative
(b) Redundant
(c) Negative
(d) Accidental
✓ Answer: (c) Negative
23. Which aspect of term is considered in logical division?
(a) Differentia
(b) Proprium
(c) Denotation
(d) Connotation
✓ Answer: (c) Denotation
24. How many types of proper induction are there?
(a) Two
(b) Three
(c) Four
(d) Five
✓ Answer: (b) Three
25. Logical definition is —
(a) the full expression of the connotation of a term
(b) the partial expression of the connotation of a term
(c) the full expression of the denotation of a term
(d) the partial expression of the denotation of a term
✓ Answer: (a) the full expression of the connotation of a term
26. What type of fallacy has occurred in the sentence, 'The mind is a sailor'?
(a) Redundant
(b) Figurative
(c) Too narrow
(d) Obscure
✓ Answer: (b) Figurative
27. What is the meaning of dichotomy?
(a) Dividing into two parts
(b) Dividing organism and non-organism
(c) Dividing the basis of quality or quantity
(d) Dividing without needs
✓ Answer: (a) Dividing into two parts
28. Which one of the following is geometrical method?
(a) Scientific induction
(b) Unscientific induction
(c) Analogical induction
(d) Induction by parity of reasoning
✓ Answer: (d) Induction by parity of reasoning
29. How many connotations are there of the term 'Educated Human'?
(a) 1
(b) 2
(c) 3
(d) 4
✓ Answer: (b) 2
30. Who is the writer of the book An Introduction to Logic?
(a) Aristotle
(b) Plato
(c) Joseph
(d) J. S. Mill
✓ Answer: (c) Joseph

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