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题目已知4个矿泉水空瓶可以换1瓶矿泉水,现有15个矿泉水空瓶,若不交钱、最多可以喝矿泉水( ). (A)3瓶 (B)4瓶 (C)5瓶 (D)6瓶 (2000年海南省中考试题) 分析解这个问题,一般的思考方法是:12个矿泉水空瓶可以换3瓶矿泉水,喝完后再用4个矿泉水空瓶换回1瓶矿泉水,这时只有3个矿泉水空瓶,不能再换矿泉水了.于是得到答案3+1
It is known that 4 empty bottles of mineral water can be exchanged for 1 bottle of mineral water. There are 15 empty bottles of mineral water. If you do not pay, you can drink up to mineral water (). (A) 3 bottles (B) 4 bottles (C ) 5 bottles (D) 6 bottles (2000 Hainan province middle school examination questions) Analysis of the solution to this problem, the general way of thinking is: 12 mineral water bottles can change 3 bottles of mineral water, drink after use 4 mineral water empty Bottle in exchange for 1 bottle of mineral water, only 3 empty bottle of mineral water at this time, can no longer change the mineral spring water. So get the answer 3 +1