`144. div 8div?=9`

Options

A. 3
B. 2
C. 4
D. 6

Explanation

To solve the equation \( 144 \div 8 \div ? = 9 \), we can follow these steps:

### Step 1: Rewrite the equation
We start with the equation:
\[ \frac{144}{8} \div ? = 9 \]

### Step 2: Calculate \( 144 \div 8 \)
Now, we need to calculate \( 144 \div 8 \):
\[ 144 \div 8 = 18 \]
So, we can rewrite the equation as:
\[ 18 \div ? = 9 \]

### Step 3: Rewrite the division as multiplication
To isolate the question mark (?), we can rewrite the division as multiplication:
\[ 18 = 9 \times ? \]

### Step 4: Solve for ?
Now, we need to solve for ? by dividing both sides by 9:
\[ ? = \frac{18}{9} \]

### Step 5: Calculate the value of ?
Now, we calculate \( \frac{18}{9} \):
\[ ? = 2 \]

### Final Answer
Thus, the value of the question mark is:
\[ ? = 2 \]

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