Class 9 Mathematics · Chapter 8 · Test 3
Reasoning, Theorems and Proofs
40 MCQs
40 questions · 35 min · 40 marks
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Sample questions
The first 5 of 40. Try each one, then tap to see the answer.
Question 1
Which of the following expressions is often related to inductive reasoning?
- Abased on repeated experiments
- Bif and only if statements
- Cstatement is proven by a theorem
- Dbased on general principles
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Answer: A
Induction draws general conclusions from repeated observations.
Question 2
Which of the following sentences describe deductive reasoning?
- Ageneral conclusions from a limited number of observations
- Bbased on repeated experiments
- Cbased on units of information that are accurate
- Ddraw conclusion from well-known facts
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Answer: D
Deduction draws conclusions from accepted facts.
Question 3
Drawing a general conclusion from a limited number of observations is called:
- Adeduction
- Binduction
- Cproof
- Dnegation
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Answer: B
This is inductive reasoning.
Question 4
A person gets a penicillin injection twice and reacts each time so he concludes he is allergic. This is:
- Adeductive reasoning
- Ba theorem
- Cinductive reasoning
- Dan axiom
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Answer: C
A general conclusion from a few experiences is induction.
Question 5
All men are mortal. We are men. Therefore we are mortal. is an example of:
- Adeductive reasoning
- Binductive reasoning
- Ca conjecture
- Dan axiom
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Answer: A
The conclusion follows from accepted facts.
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