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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.
The average weight of a group of 30 friends increases by 1 kg when the weight of their football coach was added. If average weight of the group after including the weight of the football coach is 31kgs, what is the weight of their football coach in kgs?
A) 31 kg
B) 61 kg
C) 60 kg
D) 62 kg
E) 91 kg
2.
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
3.
A cube of side 5cm is painted on all its side. If it is sliced into 1 cubic centimer cubes, how many 1 cubic centimeter cubes will have exactly one of their sides painted?
A) 9
B) 61
C) 98
D) 54
E) 64
4.
For what range of values of 'x' will the inequality 15x -
> 1?
A) x > 0.4
B) x < 1/3
C) -1/3 < x < 0.4, x > 15/2
D) -1/3 < x < 0, x > 2/5
E) x < -1/3 and x > 2/5
5.
How many diagonals does a 63-sided convex polygon have?
A) 3780
B) 1890
C) 3843
D) 3906
E) 1953
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