Four numbers when arranged in ascending order are w, x, y and z. The average of the smallest three numbers is 22, whereas the average of the largest three numbers is 28. What is the range of the data?

Four numbers when arranged in ascending order are w, x, y and z. The a

1.	Four numbers when arranged in ascending order are w, x, y and z. The average of the smallest three numbers is 22, whereas the average of the largest three numbers is 28. What is the range of the data?
A.	16
B.	17
C.	18
D.	19
Answer» D. 19

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Four numbers when arranged in ascending order are w, x, y and z. The average of the smallest three numbers is 22, whereas the average of the largest three numbers is 28. What is the range of the data?

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