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問題

解法ステップ

1. Understand the question

   some of the largest northern textile mills were built in lowell, massachusetts. most workers at the lowell mills were young women between 15 and 30 years old. some were even younger! most of them came from farms in the new england countryside. in lowell, they lived together in boarding houses owned by the mills.
   the mills ran according to strict schedules. look at this sample schedule from the 1830s. then answer the question below.
   weekday schedule
   4:30 am wake-up bell rings
   5:00 am workday begins
   7:00-7:30 am breakfast break
   12:00-12:30 pm lunch break
   7:00 pm workday ends
   7:00-10:00 pm dinner and free time
   10:00 pm return to boarding house
   according to this schedule, how many hours did an employee work each day?
   6 hours 8 hours 13 hours 19 hours

2. Explanation

   Step1: Calculate total pre-break work time

   $7:00\ \text{am} - 5:00\ \text{am} = 2\ \text{hours}$

   Step2: Calculate total post-break work time

   $7:00\ \text{pm} - 12:30\ \text{pm} = 6.5\ \text{hours}$

   Step3: Sum work segments minus breaks

   $2 + 6.5 + (12:00\ \text{pm} - 7:30\ \text{am}) = 2 + 6.5 + 4.5 = 13\ \text{hours}$

3. Final answer

   13 hours

答え

Question Analysis

OCR Text

some of the largest northern textile mills were built in lowell, massachusetts. most workers at the lowell mills were young women between 15 and 30 years old. some were even younger! most of them came from farms in the new england countryside. in lowell, they lived together in boarding houses owned by the mills.
the mills ran according to strict schedules. look at this sample schedule from the 1830s. then answer the question below.
weekday schedule
4:30 am  wake-up bell rings
5:00 am  workday begins
7:00-7:30 am  breakfast break
12:00-12:30 pm  lunch break
7:00 pm  workday ends
7:00-10:00 pm  dinner and free time
10:00 pm  return to boarding house
according to this schedule, how many hours did an employee work each day?
6 hours  8 hours  13 hours  19 hours

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