If 20% of `**` = 90, find`**`.

Options

A. 350
B. 450
C. 250
D. 550

Answer

To solve the problem, we need to find the value of `**` given that 20% of `**` equals 90. Let's break it down step by step.

### Step-by-Step Solution:

1. **Understand the Problem**: We know that 20% of some number (let's call it `x`) is equal to 90. This can be expressed mathematically as:
\[ 20\% \text{ of } x = 90 \]

2. **Convert Percentage to Decimal**: To work with percentages, we convert 20% into a decimal. This is done by dividing by 100:
\[ 20\% = \frac{20}{100} = 0.2 \]

3. **Set Up the Equation**: Now we can rewrite the equation:
\[ 0.2 \times x = 90 \]

4. **Isolate `x`**: To find `x`, we need to isolate it on one side of the equation. We can do this by dividing both sides by 0.2:
\[ x = \frac{90}{0.2} \]

5. **Calculate the Value**: Now we perform the division:
\[ x = \frac{90}{0.2} = 90 \div 0.2 \]
To simplify this division, we can multiply the numerator and the denominator by 10:
\[ x = \frac{90 \times 10}{0.2 \times 10} = \frac{900}{2} = 450 \]

6. **Final Answer**: Therefore, the value of `**` is:
\[ x = 450 \]

### Summary:
The value of `**` is 450.