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#1 2005-12-22 02:12:31

spiralfive
Novice

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Venn Diagrams

I'm having trouble solving these problems:
http://www.imagecabin.com/files/2005/12/20/B0T4iOSEytwz9dE1.swf

I think the first one is D, but cannot figure out how you do 16+.

#2 2005-12-22 05:27:31

ryos
Power Member

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Re: Venn Diagrams

I made one for #16 and started on the other one, but it turned out more complicated than I thought so I'll have to have a go at it later.


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View Image: Venn-Diagrams-16.png      


El que pega primero pega dos veces.

#3 2005-12-22 07:53:27

spiralfive
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Re: Venn Diagrams

So I had it right. Well, the main one I need help with is the second one.

#4 2005-12-23 07:28:39

spiralfive
Novice

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Re: Venn Diagrams

Could someone do this one:

25 students played soccer

4 boys played soccer and baseball

3 girls played soccer and baseball

10 boys played baseball

4 girls played baseball

9 students played tennis

3 boys played soccer and tennis

3 girls played soccer and tennis

3 boys played baseball and tennis

1 girl played baseball and tennis

1 boy played all three sports

1 girl played all three sports

#5 2005-12-23 12:59:57

John E. Franklin
Star Member

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Re: Venn Diagrams

Click on image to enlarge.
Note colored numbers.
That may help you.
Work from the center to the flower petals, and then
to the biggest parts.
The top line is boys, the bottom line is girls.


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View Image: mathisfun15.jpg      

Last edited by John E. Franklin (2005-12-23 13:01:45)


igloo myrtilles fourmis

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