Mark against the correct answer
`3.5+4.05-6.005=?`

Options

A. 1.545
B. 1.95
C. 1.41
D. none of these

Answer

To solve the expression \(3.5 + 4.05 - 6.005\), we will follow these steps:

### Step 1: Convert all numbers to the same decimal places
To make it easier to add and subtract, we can convert all numbers to have three decimal places:
- \(3.5\) can be written as \(3.500\)
- \(4.05\) can be written as \(4.050\)
- \(6.005\) remains \(6.005\)

### Step 2: Add the first two numbers
Now, we will add \(3.500\) and \(4.050\):
\[ 3.500 + 4.050 = 7.550 \]

### Step 3: Subtract the third number
Next, we will subtract \(6.005\) from \(7.550\):
\[ 7.550 - 6.005 = 1.545 \]

### Final Answer
Thus, the final answer is:
\[ 1.545 \]

### Marking the Correct Option
The correct answer is option A: \(1.545\).

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