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A pencil case contains 56 black and green pens in total. The ratio of green pens to blackis 3:5. 7. How many black pens are there? 8. How many green pens are there?

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7. There are 35 black pens.

8. There are 21 green pens.

Explanation:

3+5=8

The total number of pens can be divided into 8 equal parts. 3 of those parts are green, 5 of them are black.

5/8 • 56 = 35 black pens

3/8 • 56 = 21 green pens

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