4 years ago

The ratio of red to black pens in a box is 1:3. If there are 480 pens in the box altogether how many black pens are in the box?

Mathematics

1 answer:

Setler [38]4 years ago

3 0

Answer: 320 black pens

Step-by-step explanation:

480 ÷ 3 = 160

160 red pens

Then you have

160 + 160 = 320 black pens

If you have any questions let me know! :)

Hope this helps!!! Good luck!!! ;)

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