Third year. What was the amount of the dollar decrease in the property price during the second year

@gmat_group 
 
@AlijonovSirojiddin 
8.
The total cost of producing item X is equal to the sum of item X's 
fixed cost and variable cost. If the variable cost of producing X 
decreased by 5% in January, by what percent did the total cost of 
producing item X change in January? 
(1) The fixed cost of producing item X increased by 13% in 
January. 
(2) Before the changes in January, the fixed cost of producing 
item X was 5 times the variable cost of producing item X. 

---

@gmat_group 
 
@AlijonovSirojiddin 
9.
Of all the attendees at a dinner party, 40% were women. If each 
attendee arrived at the party either alone or with another attendee 
of the opposite sex, what percentage of the total number of 
attendees arrived at the party alone? 
(1) 50% of the male attendees arrived with a woman. 
(2) 25% of the attendees arriving alone were women. 

---

@gmat_group 
 
@AlijonovSirojiddin 
10.
What is 35 percent of 
b
a
? 
(1) b is 200 percent of a. 
(2) 50 percent of b is a. 

---

@gmat_group 
 
@AlijonovSirojiddin 
11.
Three grades of milk are 1 percent, 2 percent, and 3 percent by 
volume. If x gallons of 1 percent grade, y gallons of 2 percent 
grade, z gallons of 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? 
A) x=y+z 
B) 
2
y
z
x
+
=
C) x=2y+3z 
D) x=y+2z 
E) x=y+3z

---