What well Centre in place of the question mark (?) in the following questions?
`0.8 xx 5.5 div 0.2 xx 15= ? +150`

Options

A. 160
B. 180
C. 150
D. 120

Answer

To solve the equation \(0.8 \times 5.5 \div 0.2 \times 15 = ? + 150\), we will follow the order of operations (BODMAS/BIDMAS). Let's break it down step by step.

### Step 1: Rewrite the equation
We start with the equation:
\[ 0.8 \times 5.5 \div 0.2 \times 15 = ? + 150 \]

### Step 2: Calculate \(0.8 \times 5.5\)
First, we calculate \(0.8 \times 5.5\):
\[ 0.8 \times 5.5 = 4.4 \]

### Step 3: Divide by \(0.2\)
Next, we divide the result by \(0.2\):
\[ 4.4 \div 0.2 = 22 \]

### Step 4: Multiply by \(15\)
Now, we multiply the result by \(15\):
\[ 22 \times 15 = 330 \]

### Step 5: Set up the equation
Now we substitute back into the equation:
\[ 330 = ? + 150 \]

### Step 6: Solve for \(?\)
To find \(?\), we subtract \(150\) from both sides:
\[ ? = 330 - 150 \]
\[ ? = 180 \]

### Final Answer
Thus, the value that replaces the question mark is:
\[ \boxed{180} \]

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