Question
A bag had some green pens and purple pens in the ratio of 7 : 2. Eva removed 33 green pens and put another 10 purple pens into the bag. There is now 10% as many green pens as purple pens in the bag. How many green pens were in the bag at first?
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A bag had some green pens and purple pens in the ratio of 7 : 2. Eva removed 33 green pens and put another 10 purple pens into the bag. There is now 10% as many green pens as purple pens in the bag. How many green pens were in the bag at first?