题目内容
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The average of x and y is 16 and the average of x, y, and z is What is the value of z？
A．16
B．22
C．34
D．45
E．66
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更多“The average of x and y is 16 and the average of x, y, and z is What is the value of z？A．16”相关的问题
If the average (arithmetic mean) of x and y is 40, and z-x=60, what is the average of y and z？
A．20
B．50
C．65
D．70
E．140
What is the average (arithmetic mean) of x and y？
(1) The average of x+3 and y+5 is 14.
(2) The average of x, y, and 16 is 12.
If the average (arithmetic mean) of 10, 20, 30, 40, and x is 60, what is the value of x？
A．50
B．60
C．100
D．150
E．200
M(r, s, t) denotes the average (arithmetic mean) of r, s, and t, and M (x, y) denotes the average of x and y.
Column A Column B
M (70, 80, 90) M (x, 90) where x = M (70, 80)
A．if the quantity in Column A is greater
B．if the quantity in Column B is greater
C．if the two quantity are equal
D．if the relationship cannot be determined from the information given
If the average (arithmetic mean ) of x, y, z, 5 and 7 is 8, which of the following must be true？
I. The median of the five numbers cannot be 5.
II. At least one of x, y, and z is greater than 9.
III. The range of the five numbers is 2 or more
A．I only
B．II only
C．III only
D．I and III
E．II and III
A.Brand X
B.Brand Y
C.Brands X and Y
D.Brands Y and Z
A．1
B．8/5
C．2
D．3
E．10
Trent uses the formula: (trade receivables at year end/revenue for the year) x 365 to calculate how long on average (in days) its customers take to pay.Which of the following would NOT affect the correctness of the above calculation of the average number of days a customer takes to pay？
A、Trent experiences considerable seasonal trading
B、Trent makes a number of cash sales through retail outlets
C、Reported revenue does not include a 15% sales tax whereas the receivables do include the tax
D、Trent factors with recourse the receivable of its largest customer
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