Billy has 8 hours of free time on each day of the weekend. He wants to spend 75% of his time playing video games and the rest of his time reading. He can read 60 pages an hour and his books all contain 80 pages. How many books does he read? Let's answer step by step:
He has 16 hours because 2 x 8 = 16. He is going to spend 25% of his time reading because 100 - 75 = 25. He has 4 hours to read because 16 x .25 = 4. He will read 240 pages because 4 x 60 = 240. He will read 3 books because 240 / 80 = 3. The answer: 3.