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PostPosted: Fri Sep 16, 2011 7:20 pm 
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Joined: Tue Feb 22, 2011 11:06 pm
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paper 2,bond 4th,Q no:9-10

in a school 6 out of every 11 children are girls.if there are 407 children in the school there are:_ boys and _ girls.

the answer is 185 and 222

can any one explain the work out please?thank you.


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PostPosted: Fri Sep 16, 2011 7:29 pm 
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So how many groups of 11 children are in a school of 407?


If you can see this then the rest is straightforward ... have a think.


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PostPosted: Fri Sep 16, 2011 7:33 pm 
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This is a ratio problem of 5:6 boys to girls. The proportion is 5/11 boys, 6/11 girls


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PostPosted: Fri Sep 16, 2011 7:39 pm 
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more easiest work out please?and fatsals can you work out the answer using ratio please?thank you.


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PostPosted: Fri Sep 16, 2011 7:49 pm 
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407 has 407/11 groups of children = 37

in each group 6 are girls so number of girls = 6 x 37


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PostPosted: Fri Sep 16, 2011 7:55 pm 
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thankyou guest55 my DS got it now.


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PostPosted: Thu Aug 20, 2015 9:44 pm 
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407 divided by 11 = 37
6 x 37 = 222
5 x 37 = 185

222 girls
185 boys
:D :D :D


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