a is the hundreds digit of the three digit integer x, b is the tens digit of x, and c is the units digit of x. 4a = 2b = c, and a > 0.
What is the difference between the two greatest possible values of x?
Tip: Dont stop till you have exhausted all answer choices to arrive at the correct one.  Choices.
A) 124  B) 297  C) 394  D) 421  E) 842
Ratio of a:b:c= 1:2:4   Two possible greatest single digit values for c are 8 and 4   if c is 8, then x= 248   if c is 4, then x= 124   difference= 248-124= 
<gadget id="calculator">248-124</gadget>
<output>124</output>
124   124 is the answer
<result>A</result>
a is the hundreds digit of the three digit integer x, b is the tens digit of x, and c is the units digit of x. 4a = 2b = c, and a > 0.
What is the difference between the two greatest possible values of x?
Tip: Dont stop till you have exhausted all answer choices to arrive at the correct one.