Each of the offices in a certain building has a floor area of 200, 300 or 350 square feet. How many offices are on the first floor of the building?
1) There is a total of 9500 square feet of space on the first floor of the building.
2) Ten of the offices on the first floor have areas of 350 square feet each.
insufficient info. x - number of offices with 200 square feet, y - 300, z - 350.
(12, 12, 10) = 34 and (15, 10, 10) = 35 satisfy both conditions.