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After a certain number of moves in a chess game, the ratio of black pieces to white pieces is 4 to 3. If there are 12 black pieces on the board, which proportion can be used to find the number of white
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After a certain number of moves in a chess game, the ratio of black pieces to white pieces is 4 to 3. If there are 12 black pieces on the board, which proportion can be used to find the number of white pieces?

User Aaron Cronin
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2 Answers

1 vote
Black to white
4 : 3
12 : ?
should be 9
User Fred Tingaud
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7.3k points
0 votes
What times 4 equals 12? 3! So if 3x4=12 then do 3x3 to find the white pieces;)
User Sberder
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7.3k points
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