Question
A bag had some pink pens and green pens in the ratio of 5 : 1. Abi removed 39 pink pens and put another 21 green pens into the bag. There is now 50% as many pink pens as green pens in the bag. How many pink pens were in the bag at first?
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A bag had some pink pens and green pens in the ratio of 5 : 1. Abi removed 39 pink pens and put another 21 green pens into the bag. There is now 50% as many pink pens as green pens in the bag. How many pink pens were in the bag at first?