Respuesta :

sgreinarsson
1 book every 3 months

Answer:

1 book every 3 months

Step-by-step explanation:

  1. if ..............5 books = 15 months what about 1 book
  2. you divide 15 by 5 to get 3 so as to get the rate of books he read per month
  3. hope you'll understand

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