Out of three numbers, the first is twice the second and is half of the third. If the average of the three numbers is 84, the three numbers in order are? Choose the correct choice from the following
A) 36, 72, and 144
B) 36, 144, and 72
C) 72, 36, and 144
D) 72, 144, and 36
E) 144, 36, and 72
Let the numbers be 2x, x and 4x   (2x + x + 4x)/3 = 84   7x/3 = 84   x = 36   The numbers in order are 72, 36, and 144   The answer is 72, 36, and 144.
<result>C</result>
Out of three numbers, the first is twice the second and is half of the third. If the average of the three numbers is 84, the three numbers in order are?