What approximate value will come in place of questions mark (?) in the given questions? (You are not expected to calculate the exact value.)
`7.02xx4.99-3.09-?=2.02^3`

Options

A. 27
B. 24
C. 18
D. 15

Answer

To solve the equation \( 7.02 \times 4.99 - 3.09 - ? = 2.02^3 \) approximately, we can follow these steps:

### Step 1: Approximate the values
We can round the numbers to make calculations easier:
- \( 7.02 \) can be approximated to \( 7 \)
- \( 4.99 \) can be approximated to \( 5 \)
- \( 3.09 \) can be approximated to \( 3 \)
- \( 2.02 \) can be approximated to \( 2 \)

### Step 2: Rewrite the equation with approximations
Now, we can rewrite the equation using these approximations:
\[ 7 \times 5 - 3 - ? = 2^3 \]

### Step 3: Calculate \( 2^3 \)
Calculating \( 2^3 \):
\[ 2^3 = 8 \]

### Step 4: Calculate \( 7 \times 5 \)
Now, calculate \( 7 \times 5 \):
\[ 7 \times 5 = 35 \]

### Step 5: Substitute back into the equation
Now substitute back into the equation:
\[ 35 - 3 - ? = 8 \]

### Step 6: Simplify the left side
Now simplify the left side:
\[ 35 - 3 = 32 \]
So, the equation becomes:
\[ 32 - ? = 8 \]

### Step 7: Solve for ?
Now, we can solve for \( ? \):
\[ ? = 32 - 8 \]
\[ ? = 24 \]

### Conclusion
The approximate value that will come in place of the question mark (?) is \( 24 \).

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