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Which of the following is a counterexample that proves the conditional statement false?
If a number is divisible by five, then it is divisible by ten.

A. 20
B. 25
C. 30
D. 100

Respuesta :

Wouldn’t it be B? Because all the other numbers are divisible by 5 and 10 but not 25. And the statement says that the number needs to be divisible by 5 and 10. However, you’re looking for a counter example that proves the statement false so the only number that does that is 25.
Th answer is B. Because it’s divisible by 5 but not by 10.