conversations.from: human
conversations.value: Can you explain how to solve this math problem: Helga works for a newspaper company. She can write 5 articles every 30 minutes, and she usually works 4 hours a day 5 days a week. If Helga worked an extra 2 hours last Thursday, and an extra 3 hours last Friday, how many articles was she able to write this week?
conversations.from: assistant
conversations.value: Helga writes 5 x 2 = 10 articles per hour.
  And she can write 10 x 4 = 40 articles every 4 hours.
  So, the total number of articles she usually writes for a week is 40 x 5 = 200 articles.
  She was able to write 10 x 2 = 20 articles on her extra 2 hours last Thursday.
  And she was able to write 10 x 3 = 30 articles on her extra hour last Friday.
  So, the total number of articles she was able to write on her extra hours is 20 + 30= 50.
  Therefore, she was able to write a total of 200 + 50 = 250 this week.