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GMAT Math practice - (5/36 questions - random)
GMAT practice questions. Once you complete the quiz you will see your score and explanation of the correct answer.
1.
Set A contains all the even numbers between 2 and 50 inclusive. Set B contains all the even numbers between 102 and 150 inclusive. What is the difference between the sum of elements of set B and that of set A?
A) 2500
B) 5050
C) 11325
D) 6275
E) 2550
2.
If the mean of numbers 28, x, 42, 78 and 104 is 62, then what is the mean of 128, 255, 511, 1023 and x?
A) 395
B) 275
C) 355
D) 415
E) 365
3.
What is the measure of the radius of the circle that circumscribes a triangle whose sides measure 9, 40 and 41?
A) 6
B) 4
C) 24.5
D) 20.5
E) 12.5
4.
If the sum of the interior angles of a regular polygon measures up to 1440 degrees, how many sides does the polygon have?
A) 10 sides
B) 8 sides
C) 12 sides
D) 9 sides
E) None of these
5.
Three years back, a father was 24 years older than his son. At present the father is 5 times as old as the son. How old will the son be three years from now?
A) 12 years
B) 6 years
C) 3 years
D) 9 years
E) 27 years
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