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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.

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

Which of the following inequalities have a finite range of values of "x" satisfying them?

	A) x2 + 5x + 6 > 0
	B) \|x + 2\| > 4
	C) 9x - 7 < 3x + 14
	D) x2 - 4x + 3 < 0
	E) (B) and (D)

If the price of gasoline increases by 25% and Ron intends to spend only 15% more on gasoline, by what % should he reduce the quantity of petrol that he buys?

	A) 10%
	B) 12.5%
	C) 8%
	D) 12%
	E) 6.66%

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

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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