清晨,甲、乙、丙、丁四个小朋友走进森林采蘑菇。九点钟的时候,他们准备往回走时,每个人都数了数篮子里的蘑菇,四个人加起来总共有72只。但甲采的蘑菇有一半有毒,不能吃。在往回走的路上,甲把有毒的蘑菇全都扔了;乙的篮子底儿坏了,漏掉了两只,被丙拾起来放在了篮子里。这时,他们三人的蘑菇数正好相等。而丁呢,他在走出森林的路上又采了一些,使篮子里的蘑菇数增加了一倍。走出森林后,他们坐下来,又各自数了 Early in the morning, A, B, C, D four children into the forest mushrooms. At nine o'clock, when they were ready to go back, everyone counted the number of mushrooms in the basket, adding a total of four for a total of 72. However, half of the mushrooms are poisonous and can not be eaten. On the way back, A threw all the poisonous mushrooms; and at the bottom of B's ​​basket, two were missing, picked up by C and placed in baskets. At this time, the number of mushrooms of the three of them exactly equal. However, Ding picked up some more on his way out of the forest and doubled the number of mushrooms in the basket. After they walked out of the forest, they sat down and counted themselves again