Question 73

What is the value of x if the mean of 21, 26, 49 and x is 32?

Solution

Given numbers are 21,26,49 and x
Given, $$\dfrac{21+26+49+x}{4} = 32$$
=> $$\dfrac{96+x}{4} = 32$$
=> 96+x = 128
x = 32

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