question: A loaf of bread has 24 slices. If Abby can eat 2 slices a day while Josh can eat twice as much, how many days will the loaf of bread last?
answer: Josh can eat 2 x 2 = <<2*2=4>>4 slices a day.
  Together, Abby and Josh can eat 2 + 4 = <<2+4=6>>6 slices a day.
  So, a loaf of bread will last for 24/6 = <<24/6=4>>4 days.
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