question: Pancho walks 20 miles a day. Except on weekends when he walks 10 miles. How many miles does he walk in a week?
answer: He walks 100 miles during the weekdays because 5 x 20 = <<5*20=100>>100
  He walks 20 miles on the weekend because 2 x 10 = <<2*10=20>>20
  He walks 120 miles total because 100 + 20 = <<100+20=120>>120
  #### 120