What approximate value will come in place of question mark (?) in the following questions. (You are not expected to calculate the exact value)
`20.021 + 4.969 + 30.499 - 50.022 = ? `

Options

A. 5.5
B. 2
C. 8.5
D. 12.5

Answer

To find the approximate value of the expression \( 20.021 + 4.969 + 30.499 - 50.022 \), we will round each number to the nearest integer and then perform the arithmetic operations. Here’s the step-by-step solution:

### Step 1: Round off each number to the nearest integer
- **20.021** rounds to **20** (since it is closer to 20 than to 21).
- **4.969** rounds to **5** (since it is closer to 5 than to 4).
- **30.499** rounds to **30** (since it is closer to 30 than to 31).
- **50.022** rounds to **50** (since it is closer to 50 than to 51).

### Step 2: Substitute the rounded values into the expression
Now, we replace the original numbers with their rounded values:
\[ 20 + 5 + 30 - 50 \]

### Step 3: Perform the addition and subtraction
First, add the values:
\[ 20 + 5 = 25 \]
\[ 25 + 30 = 55 \]

Now, subtract 50:
\[ 55 - 50 = 5 \]

### Final Answer
The approximate value that will come in place of the question mark (?) is **5**.

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