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Mathematics, 19.08.2019 04:50 jaydenboi604

Ateacher has 21 red pens. if the ratio of red pens to blue pens she owned was 3: 1 , how many pens did she have total?

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Ateacher has 21 red pens. if the ratio of red pens to blue pens she owned was 3: 1 , how many pens d...
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