Question
A bag had some white pencils and red pencils in the ratio of 5 : 2. Yoko removed 27 white pencils and put another 18 red pencils into the bag. There is now 10% as many white pencils as red pencils in the bag. How many white pencils were in the bag at first?
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A bag had some white pencils and red pencils in the ratio of 5 : 2. Yoko removed 27 white pencils and put another 18 red pencils into the bag. There is now 10% as many white pencils as red pencils in the bag. How many white pencils were in the bag at first?