Whal will come in place of questron mark(?) in the following questions?
`(11800 - ?) -79 xx 4 = 512`

Options

A. 1348
B. 1986
C. 1688
D. 1992

Answer

To solve the equation \( (11800 - ?) - 79 \times 4 = 512 \), we will follow these steps:

### Step 1: Simplify the multiplication
First, we need to calculate \( 79 \times 4 \):
\[ 79 \times 4 = 316 \]
So, we can rewrite the equation as:
\[ (11800 - ?) - 316 = 512 \]

### Step 2: Rearrange the equation
Next, we will rearrange the equation to isolate the term with the question mark:
\[ 11800 - ? - 316 = 512 \]
Adding \( 316 \) to both sides gives:
\[ 11800 - ? = 512 + 316 \]

### Step 3: Calculate the right side
Now, we will calculate the right side:
\[ 512 + 316 = 828 \]
So, the equation now is:
\[ 11800 - ? = 828 \]

### Step 4: Isolate the question mark
Next, we will isolate the question mark by subtracting \( 828 \) from \( 11800 \):
\[ 11800 - 828 = ? \]

### Step 5: Perform the subtraction
Now, we will perform the subtraction:
\[ 11800 - 828 = 10972 \]

### Conclusion
Thus, the value that comes in place of the question mark is:
\[ ? = 10972 \]