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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.
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
A wheel of a car of radius 21 cms is rotating at 600 RPM. What is the speed of the car in km/hr?
A) 79.2 km/hr
B) 47.52 km/hr
C) 7.92 km/hr
D) 39.6 km/hr
E) 3.96 km/hr
The average age of a group of 10 students was 20. The average age increased by 2 years when two new students joined the group. What is the average age of the two new students who joined the group?
A) 22 years
B) 30 years
C) 44 years
D) 32 years
E) None of these
In the first 1000 natural numbers, how many integers exist such that they leave a remainder 4 when divided by 7, and a remainder 9 when divided by 11?
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?
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