gmat prep math

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by linkinpark » Sun Jan 03, 2010 3:47 am
is it A ?

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by ksundar » Sun Jan 03, 2010 4:06 am
I think answer is 'E', the last one, because there is no definite number of tourist given. Information available is only ratios of men to children and children to women. Both statements together will not hep finding the number of men in the tour.

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by thephoenix » Sun Jan 03, 2010 4:17 am
IMO C

Nw/Nc=5/2

s1) Nc/Nm=5/11-----> Nw/Nm=25/22

Nw can be 25,50,75..any thing and correspondingly Nm can be 22,44,66 ....like wise

hence insuff

s2) Nw < 30
Insuff

combining in order to maintain the ratio only one value of Nw < 30 is possible that is 25

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by hmboy17 » Sun Jan 03, 2010 9:50 am
thnx good explanation.