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3:7ratio of blue and red chairs if there are 91 red chairs how many blue are there?
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4 votes
3:7ratio of blue and red chairs if there are 91 red chairs how many blue are there?

User Johanwannheden
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1 Answer

4 votes
There are 39 blue chairs.

You can find this by setting up a proportional equation:

3/7 = x/91

Solve for x by cross-multiplying:
7x = 91*3
7x = 273
7x /7 = 273 /7
x = 39

So, there are 39 blue chairs if there are 91 red chairs.
User Chunsheng Wei
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7.8k points
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