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Start the plan\(X = \{10, 3, 6, 5\}\)
\(Y = \{5, 6, 10\}\)
In the sets above, which of the numbers in set \(Y,\) if added to set \(X,\) will be equal to both the average (arithmetic mean) and the median of the changed set \(X?\)
I. 5
II. 6
III 10
A. Only I
B. only II
C. only III
D. Only II and III
E. None of the numbers
Answer: B
Source: Economist
\(Y = \{5, 6, 10\}\)
In the sets above, which of the numbers in set \(Y,\) if added to set \(X,\) will be equal to both the average (arithmetic mean) and the median of the changed set \(X?\)
I. 5
II. 6
III 10
A. Only I
B. only II
C. only III
D. Only II and III
E. None of the numbers
Answer: B
Source: Economist
