A wizard prepares a magic potion by mixing two key ingredients.<br>For every 10 $$ml$$ of snake's blood, he needs 25 $$ml$$ of bat's saliva. <hr> Find the ratio of the volume of snake's blood used to the volume of bat's saliva added.<br> <input min="0" type="number" id ="imp6pg083q5a_1" class="lineinput" placeholder="?" /> : <input min="0" type="number" id ="imp6pg083q5a_2" class="lineinput" placeholder="?" />