In a factory of 150 workers, 18 were absent one day. What percentage were present ?

Answer

To find the percentage of workers present in a factory where 150 workers are employed and 18 were absent, we can follow these steps:

### Step-by-Step Solution:

1. **Determine the Total Number of Workers**:
The total number of workers in the factory is given as 150.

2. **Calculate the Number of Workers Absent**:
The number of workers absent is given as 18.

3. **Calculate the Number of Workers Present**:
To find the number of workers present, subtract the number of absent workers from the total number of workers:
\[ \text{Number of workers present} = \text{Total workers} - \text{Absent workers} = 150 - 18 = 132 \]

4. **Set Up the Percentage Equation**:
Let \( x \) be the percentage of workers present. We can express this as:
\[ \frac{x}{100} \times 150 = 132 \]

5. **Solve for \( x \)**:
Rearranging the equation gives:
\[ x = \frac{132 \times 100}{150} \]

6. **Simplify the Calculation**:
First, we can simplify \( \frac{132}{150} \):
- Divide both the numerator and the denominator by 10:
\[ \frac{132}{150} = \frac{13.2}{15} \]
- Now, divide both by 3:
\[ \frac{13.2 \div 3}{15 \div 3} = \frac{4.4}{5} \]
- Now, multiply by 100:
\[ x = 4.4 \times 20 = 88 \]

7. **Conclusion**:
Therefore, the percentage of workers present is \( 88\% \).

### Final Answer:
88% of the workers were present.