The average of five consecutive odd numbers is 61. What is the difference between the highest and lowest numbers :  Pick one.
A) 4	B) 8	C) 12	D) 16	E) 20
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 = 61.
or 5x + 20 = 305 or x = 57.
So, required difference = (57 + 8) - 57= 
<gadget id="calculator">(57 + 8) - 57</gadget>
<output>8</output>
8 Answer : 8
<result>B</result>
The average of five consecutive odd numbers is 61. What is the difference between the highest and lowest numbers :