2017 December(A10) Math Question 56

Statistics

- Mean, Median

56. The mean of the set of 5 numbers {42, 3, 11, 27, x} is 24, and the median of the set of 4 numbers {53, 8, 29, y) is 38. If it can be determined, which of the following values is equal to x-y?

Choice G

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