Question

4 of 10 Number - Integers - Divisibility Tests

Consider the following statements:
Alfred said:
Becky said:
Who is correct?
137 is divisible by 3 since the number
is odd.
504 is divisible by 4 since the last two
digits are divisible by 4.
Only Alfred is correct.
Both Alfred and Becky are
correct.
Only Becky is correct.
Alfred and Becky are both
incorrect

Answer 1

To determine if a number is divisible by 3, add up the digits. To determine if a number is divisible by 4, check if the last two digits are divisible by 4. Only Becky is correct.

Step-by-step explanation:

To determine if a number is divisible by 3, you can add up the digits of the number. If the sum of the digits is divisible by 3, then the number itself is also divisible by 3. Since 1 + 3 + 7 = 11, which is not divisible by 3, Alfred is incorrect. For a number to be divisible by 4, the last two digits must form a number that is divisible by 4. In the case of 504, the last two digits are 04, which is divisible by 4. Therefore, Becky is correct. So, the answer is: Only Becky is correct.

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