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Question

Find the value of x such that the mean of the following data is greater than 4.
4, 3, x, 5

A
5
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B
4
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C
6
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D
4.1
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Solution

The correct options are
A 5
C 6
D 4.1
Average of the 4 numbers is greater than 4.
Therefore, the sum of the numbers should be greater than 16. (Since, 16 = 4 x 4)
Therefore, x can have values greater than 4.
Values possible from the options are 4.1, 5, 6

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