If \(5 \bullet = \ 20\) and \(7 \bullet = \ 28\), then \(9 \bullet = \ ?\)
To solve the problem, we need to identify the pattern or logic behind the operations with the symbol \(\bullet\) given in the question. Let's analyze the provided relationships:
- Given: \(5 \bullet = 20\). We can interpret this as an operation performed on 5 to get 20.
- Given: \(7 \bullet = 28\). Similarly, an operation is performed on 7 to obtain 28.
We assume that there is some consistent arithmetic operation being applied. Let's look for possible patterns:
- Observe that \(5 \times 4 = 20\). Hence, the operation could be multiplying 5 by 4.
- Observe that \(7 \times 4 = 28\). This suggests the operation is to multiply the number by 4 consistently.
Based on the identified pattern, we hypothesize that \(x \bullet = x \times 4\).
Now, apply this rule to find \(9 \bullet\):
- Using the rule, \(9 \times 4 = 36\).
Therefore, \(9 \bullet = 36\). Thus, the solution is consistent with the pattern observed, and the correct answer is 36.
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Study the given pattern carefully and select the number that can replace the question mark (?) in it.
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