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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.
What is the equation of a circle of radius 6 units centered at (3, 2)?
A) x2 + y2 + 6x – 4y = 23
B) x2 + y2 - 6x + 4y = 23
C) x2 + y2 + 6x + 4y = 23
D) x2 + y2 - 6x – 4y = - 23
E) x2 + y2 - 6x – 4y = 23
2.
The average of 5 quantities is 6. The average of 3 of them is 8. What is the average of the remaining two numbers?
A) 4
B) 5
C) 3
D) 3.5
E) 0.5
3.
The arithmetic mean of the 5 consecutive integers starting with 's' is 'a'. What is the arithmetic mean of 9 consecutive integers that start with s + 2?
A) 2 + s + a
B) 2 + a
C) 2s
D) 2a + 2
E) 4 + a
4.
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
5.
The average wages of a worker during a fortnight comprising 15 consecutive working days was $ 90 per day. During the first 7 days, his average wages was $ 87/day and the average wages during the last 7 days was $ 92 /day. What was his wage on the 8
th
day?
A) $ 83
B) $ 92
C) $ 90
D) $ 97
E) $ 104
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