Question
A bag had some red markers and black markers in the ratio of 7 : 2. Shannon removed 39 red markers and put another 18 black markers into the bag. There is now 10% as many red markers as black markers in the bag. How many red markers were in the bag at first?
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A bag had some red markers and black markers in the ratio of 7 : 2. Shannon removed 39 red markers and put another 18 black markers into the bag. There is now 10% as many red markers as black markers in the bag. How many red markers were in the bag at first?