If the ratio of the areas of two squares is 225:256, then the ratio of their perimeters is :	Choose the correct choice from the following:
A) 15:12  B) 15:14  C) 15:16  D) 15:22  E) None of these
Explanation:   a2/b2=225/256=15/16   &lt;=&gt;4a/4b=4∗15/4∗16   =15/16=15:16   Option 15:16
<result>C</result>
If the ratio of the areas of two squares is 225:256, then the ratio of their perimeters is :