McqkartGet appPractise

What can be inferred from the following? 'Because x = 3 and y = 5, then x + y = 8.' It is a:

ADeductive argument based on elimination
BDeductive argument based on mathematics ✓ Correct
CInductive argument from authority
DInductive argument from the principle of charity
Correct answer: (B) Deductive argument based on mathematics
Explanation

The passage from x=3 and y=5 to x+y=8 is a deductive argument grounded in mathematics.

The two equations are the premises and the sum is the conclusion.

Given those values, the total is fixed with strict necessity, not mere probability.

Mathematical relations guarantee that the conclusion cannot fail once the premises hold.

Such necessity is the hallmark of deduction rather than inductive support.

Arguments resting on arithmetic or algebraic truth are classed as deductive on mathematics.

Want more like this? Create a free account to practise a full test, track your progress, and get spaced-repetition review.

Practise on Mcqkart →🎓 Book an expert →