Mathematics, 27.08.2019 03:30 praveen35301

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

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Ateacher had 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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