The average of five consecutive odd numbers is 51. What is the difference between the highest and lowest number?  Choose the correct choice from the following answers:  A) 3  B) 7  C) 8  D) 11  E) None of these
Explanation:   Let the numbers be x, x + 2, x + 4, x + 6 and x + 8.   Then, [x + (x + 2) + (x + 4) + (x + 6) + (x + 8)] / 5 = 51   5x + 20 = 255   x = 47   So, required difference = (47 + 8) – 47 = 8   ANSWER 8
<result>C</result>
The average of five consecutive odd numbers is 51. What is the difference between the highest and lowest number?