Find the average of 12 km, 11.8 km and 8$$\frac{1}{5}$$ km. <br> A$$\frac{B}{C}$$ <hr>A: <input min="0" type="number" class="lineinput" placeholder="?" /> B:<input min="0" type="number" class="lineinput" placeholder="?" />C:<input min="0" type="number" class="lineinput" placeholder="?" />