What should come in place of the question mark (?) in the following questions ?
450% of ? `div` 45 - 428 = 195

Options

A. 6230
B. 6320
C. 6023
D. 2306

Answer

To solve the equation given in the question, we need to find the value of the question mark (?) in the expression:

450% of ? ÷ 45 - 428 = 195

Let's break down the steps to find the value of ?.

### Step 1: Rewrite the equation
We start with the equation:
\[ 450\% \text{ of } ? \div 45 - 428 = 195 \]

### Step 2: Isolate the division
First, we can isolate the division by adding 428 to both sides of the equation:
\[ 450\% \text{ of } ? \div 45 = 195 + 428 \]
\[ 450\% \text{ of } ? \div 45 = 623 \]

### Step 3: Eliminate the division
Next, we can eliminate the division by multiplying both sides by 45:
\[ 450\% \text{ of } ? = 623 \times 45 \]

### Step 4: Calculate the right side
Now, we calculate \( 623 \times 45 \):
\[ 623 \times 45 = 28035 \]
So we have:
\[ 450\% \text{ of } ? = 28035 \]

### Step 5: Convert percentage to decimal
Now, we need to convert 450% to a decimal.
\[ 450\% = \frac{450}{100} = 4.5 \]

### Step 6: Set up the equation
Now we can set up the equation:
\[ 4.5 \times ? = 28035 \]

### Step 7: Solve for ?
To find ?, we divide both sides by 4.5:
\[ ? = \frac{28035}{4.5} \]

### Step 8: Perform the division
Now we perform the division:
\[ ? = 6230 \]

### Final Answer
Thus, the value of ? is:
\[ ? = 6230 \]

---