`18.5xx21.4xx?=6255.22`

Options

A. 15.8
B. 14.6
C. 17.4
D. 17.2

Explanation

To solve the equation \( 18.5 \times 21.4 \times ? = 625.22 \), we can follow these steps:

### Step 1: Calculate \( 18.5 \times 21.4 \)

First, we need to multiply the two numbers:

\[ 18.5 \times 21.4 \]

Calculating this gives:

\[ 18.5 \times 21.4 = 395.9 \]

### Step 2: Set up the equation

Now, we can rewrite the original equation using the result from Step 1:

\[ 395.9 \times ? = 625.22 \]

### Step 3: Solve for the question mark (?)

To find the value of the question mark, we can isolate it by dividing both sides of the equation by 395.9:

\[ ? = \frac{625.22}{395.9} \]

### Step 4: Perform the division

Now, we calculate the division:

\[ ? = \frac{625.22}{395.9} \approx 15.8 \]

### Final Answer

Thus, the value of the question mark is:

\[ ? \approx 15.8 \]

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