(40) At the Medal Factory, the assembly line produces 98 screwdrivers in a batch. The screwdrivers are packaged in boxes with 12 each. If 5 batches are made in one day, how many screwdrivers will be leftover at the end of it?

To find out how many screwdrivers will be leftover at the end of the day, we can follow these steps: 1. **Calculate the total number of screwdrivers produced in one day:** \[ \text{Total screwdrivers} = \text{Number of batches} \times \text{Screwdrivers per batch} \] \[ \text{Total screwdrivers} = 5 \times 98 = 490 \] 2. **Determine how many boxes can be filled with the total screwdrivers:** \[ \text{Number of boxes} = \frac{\text{Total screwdrivers}}{\text{Screwdrivers per box}} \] \[ \text{Number of boxes} = \frac{490}{12} \approx 40.8333 \] Since we can only fill whole boxes, we can fill 40 boxes. 3. **Calculate the total number of screwdrivers used in the filled boxes:** \[ \text{Screwdrivers used} = \text{Number of boxes} \times \text{Screwdrivers per box} \] \[ \text{Screwdrivers used} = 40 \times 12 = 480 \] 4. **Calculate the number of leftover screwdrivers:** \[ \text{Leftover screwdrivers} = \text{Total screwdrivers} - \text{Screwdrivers used} \] \[ \text{Leftover screwdrivers} = 490 - 480 = 10 \] Therefore, the number of screwdrivers that will be leftover at the end of the day is **10**.