GRE Exam Numerical Ability Arithmetic

3, 7, 9, 14, x
The numbers in the list above are ordered from least to greatest. If the average (arithmetic mean) is 2 greater than the median, what is the value of x?

Read Solution (Total 1)

Mean = 2*Median
(3+7+9+14+x)/5 = 2*9
33+x = 18*5
x=90 - 33 = 57
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GRE Other Question

Workers at Companies X and Y are paid the same base hourly rate. Workers at company X are paid 1.5 times the base hourly rate for each hour worked per week in excess of the first 37, while workers at Company Y are paid 1.5 times the base hourly rate for each hour worked per week in excess of the first 40. In a given week, how many hours must a Company X worker work in order to receive the same pay as a company Y worker who works 46 hours? Tina, Edward, and Lauren agree to share the cost of a gift and to make their contributions in proportion to their ages. Edwards age is 1/2 of Tina’s age, and Lauren’s age is 1/3 of Edward’s age. If Lauren’s share of the cost is $ 2.50, what is the cost of the gift?