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by Mom4MBA » Mon Jul 11, 2011 9:59 pm
given w/c = 5/2

statement 1 :
c/m = 5/11
this gives the ration but not actual number
alone not sufficient

statement 2 :
w<30
alone not sufficient

taking both:

w/c = 5/2
c/m = 5/11

so
w/m = 25/22

given w<30

so w=25 hence m=22

both together sufficient
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by amit2k9 » Tue Jul 12, 2011 11:15 pm
a+b

number of children will be multiple of 5 and 2. hence c=10 gives
w=25 and m=22.
C is true.
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by GMATGuruNY » Wed Jul 13, 2011 2:25 am
I posted a solution here:

https://www.beatthegmat.com/ratio-proportion-t82796.html
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