If 0 < a < b and k = (4a + 3b)/b , which of the following must be true?	Choose the correct choice from the following choices
A) k < 2 B) k < 7 C) k > 19 D) k > 9 E) k > 11
Please follow posting guidelines (link in my signature) especially writing the correct topic title. Also do mention the source of the question if you select the tag:Source-Other Please Specify.   As for your question, it is very simple and straightforward with number plug in.   Assume a=1 and b=2 as a &lt; b, you get k = (4+6)/2= 
<gadget id="calculator">(4+6)/2</gadget>
<output>5</output>
5. This eliminates all but option k &lt; 7 , making it the correct answer.
<result>B</result>
If 0 < a < b and k = (4a + 3b)/b , which of the following must be true?