There were 30 workers in a factory in May. In June, the number of workers increased by 20%. How many workers were there in June?

To find the number of workers in June after a 20% increase, follow these steps:

1. **Initial number of workers in May:** 30 workers.
2. **Percentage increase:** 20%.

To calculate the increase in the number of workers:
\[
\text{Increase} = \left(\frac{20}{100}\right) \times 30 = 0.2 \times 30 = 6 \text{ workers}
\]

Now, add this increase to the original number of workers:
\[
\text{Number of workers in June} = 30 + 6 = 36 \text{ workers}
\]

So, there were **36 workers** in June.

Would you like more details or have any questions?

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Here are 8 related questions for further practice:

1. If the number of workers decreased by 10% in July, how many workers would there be?
2. What would be the number of workers if the percentage increase in June was 25% instead of 20%?
3. If the factory had 50 workers in June, what was the percentage increase from May?
4. How many workers would there be if the factory hired 15% more workers in June?
5. If the factory planned to increase the number of workers by 50% by the end of the year, how many workers would there be?
6. How many workers were added to the factory if the number increased by 25% in June?
7. What is the new percentage of increase if the number of workers increased from 30 to 45?
8. If the factory had 30 workers in April, and increased to 36 in June, what was the average monthly percentage increase?

**Tip:** When dealing with percentage changes, always convert the percentage to a decimal by dividing by 100 before multiplying.

Learn how to calculate the increase in workers from 30 to 36 in June after a 20% increase. This problem involves basic arithmetic and percentage increase calculations. Suitable for students in Grades 6-8.

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