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Find the mean of x + 3, x + 5, x + 7, x + 9 and x + 11. - Mathematics

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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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Chapter 21: Data Handling - Exercise 21 (B)

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Selina Concise Mathematics [English] Class 7 ICSE
Chapter 21 Data Handling
Exercise 21 (B) | Q 5
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