[問題]GWD23-7

[magic]

Q7:
If the average (arithmetic mean) of 5 different numbers is 12, what is the median of the 5 numbers?
(1)The median of the 5 numbers is equal to of the sum of the 4 numbers other than the median.
(2)The sum of the 4 numbers other than the median is equal to 45.
答案是D能請大大教一下嗎
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