A foundry produces circular utility access hatches (manhole covers). Currently, 120 covers are produced in a 10-hour shift. If labour productivity can be increased by 20%, it would then be

To determine how many covers would be produced if labor productivity increases by 20%, we can follow these steps:

1. **Current production rate**:  
   The foundry currently produces 120 covers in a 10-hour shift. So, the production rate is:

   \[
   \text{Current production rate} = \frac{120 \text{ covers}}{10 \text{ hours}} = 12 \text{ covers/hour}
   \]

2. **Increased productivity**:  
   If labor productivity is increased by 20%, the new production rate will be:

   \[
   \text{New production rate} = 12 \text{ covers/hour} \times (1 + 0.20) = 12 \times 1.20 = 14.4 \text{ covers/hour}
   \]

3. **New total production**:  
   In a 10-hour shift, the total number of covers produced at this new rate will be:

   \[
   \text{New total production} = 14.4 \text{ covers/hour} \times 10 \text{ hours} = 144 \text{ covers}
   \]

Thus, with a 20% increase in labor productivity, the foundry would produce **144 covers** in a 10-hour shift.

Would you like further details or have any questions?

Here are 5 related questions to explore further:
1. How would the production change if the shift was extended by 2 more hours?
2. What would happen if productivity increased by 30% instead of 20%?
3. How many covers could be produced in an 8-hour shift after the productivity increase?
4. What is the percentage increase in total production after the productivity improvement?
5. How many covers are produced per minute before and after the productivity increase?

**Tip**: To calculate percentage increases, multiply the original value by \( 1 + \text{percentage increase as a decimal} \).

Learn how to calculate the increase in production of manhole covers at a foundry when labor productivity is increased by 20%. Understand key concepts like production rate, percentage increase, and total production. Ideal for students in Grades 6-8.

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