The greatest number in a set of \(4\) numbers is \(70.\) What is the average (arithmetic mean) of the set?

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The greatest number in a set of \(4\) numbers is \(70.\) What is the average (arithmetic mean) of the set?

(1) The median of the set is \(25.\)
(2) The range of the set is \(70.\)

Answer: C

Source: Princeton Review
Source: — Data Sufficiency |