Question
A bag had some blue pens and green pens in the ratio of 3 : 1. Betty removed 40 blue pens and put another 16 green pens into the bag. There is now 25% as many blue pens as green pens in the bag. How many blue pens were in the bag at first?
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A bag had some blue pens and green pens in the ratio of 3 : 1. Betty removed 40 blue pens and put another 16 green pens into the bag. There is now 25% as many blue pens as green pens in the bag. How many blue pens were in the bag at first?