`1798 div 31 xx ? = 348`

Options

A. 3
B. 6
C. 4
D. 5

Explanation

To solve the equation \( 1798 \div 31 \times ? = 348 \), we will follow these steps:

### Step 1: Rewrite the equation
We start with the equation:
\[ \frac{1798}{31} \times ? = 348 \]

### Step 2: Calculate \( 1798 \div 31 \)
Next, we need to perform the division:
\[ 1798 \div 31 \]
Calculating this gives:
\[ 1798 \div 31 = 58 \]
So we can rewrite our equation as:
\[ 58 \times ? = 348 \]

### Step 3: Isolate the question mark (?)
To find the value of the question mark (?), we need to isolate it. We do this by dividing both sides of the equation by 58:
\[ ? = \frac{348}{58} \]

### Step 4: Calculate \( 348 \div 58 \)
Now we perform the division:
\[ 348 \div 58 \]
To simplify, we can divide both the numerator and the denominator by 2:
\[ \frac{348 \div 2}{58 \div 2} = \frac{174}{29} \]
Now, we can perform the division:
\[ 174 \div 29 = 6 \]

### Conclusion
Thus, the value of the question mark (?) is:
\[ ? = 6 \]