A bookstore offered mystery bags each containing 12 books. The quantity of each type of book was the same in each mystery bag. A shopper bought 3 mystery bags and found that 6 books were spy novels.
Based on this information, which prediction can the shopper make about buying mystery bags in the future?
There will be 4 more spy novels in 8 bags than in 6 bags.
There will be 2 more spy novels in 6 bags than in 4 bags.
There will be 1 more spy novel in 9 bags than in 8 bags.
There will be 6 more spy novels in 10 bags than in 8 bags.