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pkw209
- Master | Next Rank: 500 Posts
- Posts: 266
- Joined: Mon Oct 19, 2009 9:46 pm
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- GMAT Score:690
Hi all,
Couldn't figure this one out. Would appreciate a brief explanation. thanks!
Q) Three grades of milk are 1 percent, 2 percent and 3 percent fat by volume. If X gallons of the 1 percent grade, Y gallons of the 2 percent grade, and Z gallons of the 3 percent grade are mixed to give x + y + z gallons of a 1.5 percent grade, what is X in terms of Y and Z?
1) y + 3z
2) (y + z) / 4
3) 2y + 3z
4) 3y + z
5) 3y + 4.5z
Couldn't figure this one out. Would appreciate a brief explanation. thanks!
Q) Three grades of milk are 1 percent, 2 percent and 3 percent fat by volume. If X gallons of the 1 percent grade, Y gallons of the 2 percent grade, and Z gallons of the 3 percent grade are mixed to give x + y + z gallons of a 1.5 percent grade, what is X in terms of Y and Z?
1) y + 3z
2) (y + z) / 4
3) 2y + 3z
4) 3y + z
5) 3y + 4.5z
