The ratio of the number of pencils that Felicia had to the number of pencils that Siti had was 5 : 7. Siti gave 15 pencils to Felicia.<br> In the end, Siti had $$\frac{1}{5}$$ as many pencils as Felicia. <hr> How many pencils did Felicia have in the end? <br> <input min="0" type="number" id ="imp6pg092q5_1" class="lineinput" placeholder="?" />