If the average (arithmetic mean) of the four numbers K, 2K + 2, 3K – 5 and 5K + 1 is 63, what is the value of K?
Pick:
A) 11 B) 15 3/4 C) 22 D) 23 E) 23 1/11
K + 2K +2 + 3K - 5 + 5K +1 = 11K -2   (11K -2)/4 = 63   11K = 63 * 4 +2 = 252 +2= 
<gadget id="calculator">252 +2</gadget>
<output>254</output>
254   K= 254 / 11 = 23 1/11   Answer 23 1/11.
<result>E</result>
If the average (arithmetic mean) of the four numbers K, 2K + 2, 3K – 5 and 5K + 1 is 63, what is the value of K?