The product of two numbers is 55 . If one of the numbers is 2.50 , what is the other number ?

Options

A. 26
B. 25
C. 22
D. 24

Answer

To find the other number when the product of two numbers is given, we can follow these steps:

### Step 1: Understand the relationship
We know that the product of two numbers is given by the equation:
\[ \text{First Number} \times \text{Second Number} = \text{Product} \]

### Step 2: Substitute the known values
In this case, we know:
- The product is 55
- One of the numbers (First Number) is 2.50

So we can write:
\[ 2.50 \times \text{Second Number} = 55 \]

### Step 3: Isolate the Second Number
To find the Second Number, we can rearrange the equation:
\[ \text{Second Number} = \frac{55}{2.50} \]

### Step 4: Perform the division
Now we need to calculate \( \frac{55}{2.50} \). To make the division easier, we can eliminate the decimal by multiplying both the numerator and the denominator by 100:
\[ \frac{55 \times 100}{2.50 \times 100} = \frac{5500}{250} \]

### Step 5: Simplify the fraction
Now we can simplify \( \frac{5500}{250} \):
- Divide both the numerator and the denominator by 50:
\[ \frac{5500 \div 50}{250 \div 50} = \frac{110}{5} \]

### Step 6: Final calculation
Now we divide:
\[ 110 \div 5 = 22 \]

### Conclusion
Thus, the other number is:
\[ \text{Second Number} = 22 \]