Larry worked 480 hours in 12 weeks at this rate how many will he work in 16 weeks? A. 496 B. 640 C. 5,760 D. 7,680

To solve this, we first need to determine how many hours Larry works per week, then use that rate to calculate how many hours he will work in 16 weeks.

1. **Find the rate of hours worked per week**:
   
   \[
   \text{Hours per week} = \frac{\text{Total hours worked}}{\text{Total weeks}} = \frac{480}{12} = 40 \, \text{hours/week}
   \]

2. **Calculate the total hours worked in 16 weeks**:
   
   \[
   \text{Total hours in 16 weeks} = \text{Hours per week} \times \text{Number of weeks} = 40 \times 16 = 640 \, \text{hours}
   \]

Thus, Larry will work **640 hours** in 16 weeks. The correct answer is **B. 640**.

Would you like more details on the calculation?

Here are some related questions:
1. If Larry worked 50 hours per week, how many hours would he work in 12 weeks?
2. How many hours would Larry work in 20 weeks at the same rate?
3. If Larry worked only 30 hours per week, how many total hours would he work in 16 weeks?
4. How many weeks would Larry need to work to complete 1,000 hours at this rate?
5. What would be the total hours worked if Larry increased his work hours to 45 per week for 16 weeks?

**Tip**: When calculating based on rates, always find the unit rate first (in this case, hours per week) and then apply it to the new scenario.

Solve the problem of how many hours Larry will work in 16 weeks, given he worked 480 hours in 12 weeks. This problem covers key math concepts such as ratio, proportion, and basic linear equations. Ideal for students in Grades 5-6.

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