Maths-
General
Easy

Question

Show the conjecture is false by finding a counterexample. If the product of two numbers is even, then the two numbers must be even.

hintHint:

Inductive Reasoning is the process of drawing a general conclusion by observing a pattern based on the observations and this conclusion is called conjecture.
Counterexample: It is an example which shows that the conjecture is false.

The correct answer is: Hence, the counterexample for the given conjecture is the product of 3 and 4


    Let the two numbers be x and y
    Take x = 3 and y = 4
    Multiplying x and y
    x × y = 3  4
    = 12
    The result is an even integer but one of the number used in the product is 3 which is not even. So, the given conjecture i.e. “If the product of two numbers is even, then the two numbers must be even” is wrong.
    Final Answer:
    Hence, the counterexample for the given conjecture is the product of 3 and 4

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