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The average of five consecutive odd numbers is 61. What is the difference between the highest and lowest numbers ?

A) 2

B) 5

C) 8

D) Cannot be determined

E) None of these

Option C

Let the number be x,x+2,x+4,x+6 and x+8
then $\frac{x+(x+2)+(x+4)+(x+6)+(x+8)}{5}=61$
5x+20=805
x=57
So required difference = (57+8)-57=8

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