Question
Find the square of 'x' if the average of 22, 31, 49, 38,
29, and 'x' is 40.Solution
ATQ,
22 + 31 + 49 + 38 + 29 + x = 40 × 6
Or, x = 240 - (22 + 31 + 49 + 38 + 29)
So, x = 71
So, required value = 71² = 5041
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