The ratio of the volume of water in Cup A to the volume of water in Cup B is 8 : 3. After 50 $$ml$$ of water was poured from Cup A to Cup B, both had the same amount of water. <hr> There was <input min="0" type="number" id ="imp5pg101q8_1" class="lineinput" placeholder="?" /> $$ml$$ water in each cup in the end.