Manhattan Prep - 5 Lb. Book of Gre Practice Problems 1,800 Practice Problems in Book and Online (Manhattan Prep 5 lb Series (2019 Edition))-Manhattan Prep (2019)
Quantity A y Quantity B 25
39. A chemist is mixing a solution of acetone and water. She currently has 30
ounces mixed, 10 of which are acetone. How many ounces of acetone
should she add to her current mixture to attain a 50/50 mixture of acetone
and water if no additional water is added?
(A)
2.5
(B)
5
(C)
10
(D)
15
(E)
20
By the end of July, a certain baseball team had played 80% of the total
games to be played that season and had won 50% of those games. Of the
remaining games for the season, the team won 60%.
40.
Quantity A Percent of total games won for the
season
Quantity B 52%
41.
Quantity A 0.4% of 4% of 1.25
Quantity B 0.002
42. Jane has a 40-ounce mixture of apple juice and seltzer that is 30% apple
juice. If she pours 10 more ounces of apple juice into the mixture, what
percent of the mixture will be seltzer?
(A)
33%
(B)
44%
(C)
50%
(D)
56%
(E)
67%
Half of the shirts in a closet are white and 30% of the remaining shirts
are gray.
43.
Quantity A The percent of the shirts in the
closet that are not white or gray.
Quantity B 20%
The length and width of a painted rectangle were each increased by 10%.
44.
Quantity A The percent increase in the area of
the painted rectangle
Quantity B 10%
45. If 35% of
x equals 140, what is 20% of
x ?
(A) 9.8
(B) 39.2
(C)
80
(D)
320
(E)
400
46. A population of a colony of bacteria increases by 20% every 3 minutes. If
at 9:00am the colony had a population of 144,000, what was the
population of the colony at 8:54am?
(A)
100,000
(B)
112,000
(C)
120,000
(D)
121,000
(E)
136,000
The price of an item is greater than $90 and less than $150.
47.