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Question
Find the mean of x + 3, x + 5, x + 7, x + 9 and x + 11.
Sum
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Solution
Mean of x + 3, x + 5, x + 7, x + 9 and x + 11
∴ Mean = `((x + 3)(x + 5)(x + 7)(x + 9)(x + 11))/5` ...(Here n = 5)
= `(5x + 35)/5`
= `(5(x + 7))/5`
= x + 7
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