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GMAT难题300合集   题数：83
The figure above shows the dimensions of a square picture frame that was constructed using four identical pieces of frame as shown. If w is the width of each piece of the frame, what is the area of the front surface of each piece? (1 ft= 12 inches)(1)w=3 inches(2)PQ=√18inches
The cardinality of a finite set is the number of elements in the set. What is the cardinality of set A?(1) 2 is the cardinality of exactly 6 subsets of set A(2) Set A has a total of 16 subsets, including the empty set and set A itself.
Bowls X and Y each contained exactly 2 jelly beans, each of which was either red or black. One of the jelly beans in Bowl X was exchanged with one of the jelly beans in Bowl Y. After the exchange, were both of the jelly beans in Bowl X black?(1)Before the exchange, Bowl X contained 2 black jelly beans.(2)After the exchange, Bowl Y contained 1 jelly bean of each color.
A country's per capita national debt is its national debt divided by its population. Is the per capita national debt of Country G within $5 of $500?(1) Country G's national debt to the nearest $1, 000,000,000 is $43,000,000,000.(2)Country G's population to the nearest 1, 000, 000is 86,000,000.
All trainees in a certain aviator training program must take both a written test and a flight test. If 70 percent of the trainees passed the written test, and 80 percent of the trainees passed the flight test, what percent of the trainees passed both tests?(1)10 percent of the trainees did not pass either test.(2)20 percent of the trainees passed only the flight test.
What is the number of integers that are common to both set S and set T?(1)The number of integers in S is 7, and the number of integers in T is 6.(2)U is the set of integers that are in S only or in T only or in both, and the number of integers in U is 10.
What is the sum of 3 consecutive integers？(1) The sum of the 3 integers is less than the greatest of the 3 integers.(2)Of the 3 integers, the ratio of least to the greatest is 3.
How many people in Town X read neither the World newspaper nor the Globe newspaper?(1)Of the 2, 500 people in Town X, 1,000 read no newspaper.(2)of the people in Town X, 700 read the Globe only and 600 read the World only.
In quadrilateral ABCD, is angle BCD a right angle?(1) Angle ABC is a right angle(2) Angle ADC is a right angle
For each positive integer k, let ak=(1+1k+1 ) .Is the product a1a2 ... an integer?(1)n+ 1 is a multiple of 3.(2)n is a multiple of 2.
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