Solutions
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Question
During an experiment, the temperature of a liquid was measured several times. The temperatures, in degree Celsius, listed in increasing order, are 21, 25, x, 40 and 50. If the arithmetic mean of these temperatures is equal to the median, what is the value of x?
Option A:
34
Option B:
35
Option C:
36
Option D:
37
Option E:
38
Difficulty Level
EasySolution
Option A is the correct answer.
Option Analysis
Given that Average = Median
Median is the middle most term in the ordered list
Average = total / number of things
(136+x)/5 = x
136+x = 5x
4x = 136
x = 34
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