Hi bunuel
for stmt 2 to be sufficient, we need to assume that everyone participated in the contribution. It is not mentioned anywhere right?
Bunuel wrote:
tinki wrote:
If 25% of the company's employees contribute at least 4% of their salary to the Charity Fund, what percent of the company's employees contribute at least 5% of their salary to the Charity Fund?
1. 20% of the company's employees contribute at least 4% but less than 5% of their salary to the Charity Fund
2. 95% of the company's employees contribute less than 5% of their salary to the Charity Fund
(C) 2008 GMAT Club -
m18#18Can anybody show how to do this problem with
double set matrix? i tried and somehow failed
with A .
thaaanks ...
-------4------5-----
___X____Y_____Z_
X% contribute less than 4;
Y% contribute at least 4 but less than 5;
Z% contribute at least 5.
Note that these groups don't have intersections and X+Y+Z=100.
Given: Y+Z=25%. Question: Z=?
(1) Y=20% --> Y+Z=20+Z=25% --> Z=5%. Sufficient.
(2) X+Y=95% --> X+Y+Z=95+Z=100% --> Z=5%. Sufficient.