Question
12 of the number of cows that Farmer Bobby had was equal to 57 of the number of cows that Farmer Luis had. When Farmer Bobby sold 300 of his cows and Farmer Luis bought another 40, the ratio of the number of cows that Farmer Bobby had to the number of cows Farmer Luis had become 5 : 4. What was the total number of cows that the 2 farmers had at first?
4 m

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12 of the number of cows that Farmer Bobby had was equal to 57 of the number of cows that Farmer Luis had. When Farmer Bobby sold 300 of his cows and Farmer Luis bought another 40, the ratio of the number of cows that Farmer Bobby had to the number of cows Farmer Luis had become 5 : 4. What was the total number of cows that the 2 farmers had at first?