exam Maths Puzzle Numerical Ability

Use the strategy of indirect reasoning to justify each of the following:
A. if the product of 2 positive numbers is greater than 82, then at least one of the numbers is greater than 9.

I know its not true but I dont know how to explain it

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exam Other Question

I want to know anything about roots of real numbers/properties of radicals please. True or false: Suppose you write, All adults were once babies and All babies were once cute in if-then form. The Law of Syllogism will let you conclude that if a person is an adult, then that person was once cute.