Posted by **Milen** on Tuesday, November 6, 2012 at 4:53am.

The mean height of Pat, Dex, Allan, Dan and Roy is 68 inches. If George is included in the group, the mean height becomes 67 inches. How tall is George?

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**Tarefa**, Tuesday, November 6, 2012 at 6:00am
Show that 2Radical2an irrational number

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**Reiny**, Tuesday, November 6, 2012 at 8:10am
Your last 4 or 5 questions have all been the same type.

I will do this one and let you do the others in the same way

The average for the 5 boys is 68, so their total heights is 5(68) = 340

Let George's height be x

(x + 340)/6 = 67

x+340 = 402

x = 62

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