There were 62 litres of water in Container A and 10 litres of water in Container B. After an equal amount of water was poured into each of the two containers, the amount of water in Container A became thrice as much as the amount of water in Container B. <hr> <input min="0" type="number" id ="imp5pg021q11_1" class="lineinput" placeholder="?" /> litres of water was poured into each of the containers.