Directions (81-85): What approximate value will come in place of question mark (?) in the following questions (You are not expected to calculate the exact value).

$5.03\%\text{of}39.89+10.09\%\text{of}450=?$

To find the approximate value of the given mathematical expression, we can round each decimal value to its nearest whole number or convenient value.

The given expression is:

$5.03\%\text{of}39.89+10.09\%\text{of}450=?$

Step 1: Round off the numbers to their nearest integers.
• $5.03\%\approx 5\%$
• $39.89\approx 40$
• $10.09\%\approx 10\%$

Step 2: Substitute the rounded values into the expression.

$?\approx 5\%\text{of}40+10\%\text{of}450$

Step 3: Calculate each part individually.
First part:
$5\%\text{of}40=\frac{5}{100}\times 40=2$

Second part:
$10\%\text{of}450=\frac{10}{100}\times 450=45$

Step 4: Add the two results together.

$?\approx 2+45=47$

Thus, the approximate value that comes in place of the question mark (?) is 47.