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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 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

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

How many diagonals does a 63-sided convex polygon have?

	A) 3780
	B) 1890
	C) 3843
	D) 3906
	E) 1953

Robin earns 30% more than Erica. Charles earns 60% more than Erica. How much % is the wages earned by Charles more than that earned by Robin?

	A) 23%
	B) 18.75%
	C) 30%
	D) 50%
	E) 100%

If both 11² and 3³ are factors of the number a * 4³ * 6² * 13¹¹, then what is the smallest possible value of a?

	A) 121
	B) 3267
	C) 363
	D) 33
	E) None of the above


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