Which of the following ratios is greatest?
Choose the correct choice from the following choices
A) 7 : 15	B) 15 : 23	C) 17 : 25	D) 21 : 29	E) None
Sol.   7/15 = 0.466,   15/23 = 0.652,   17/25= 
<gadget id="calculator">17/25</gadget>
<output>17/25 = around 0.68</output>
0.68&lt;,br/&gt; 21/29= 0.724,   Clearly, 0.724 is greatest and therefore, 21 : 29 is greatest.   Answer 21 : 29
<result>D</result>
Which of the following ratios is greatest?