树上结满了桃子，小猴发现的第一天吃掉树上所有桃子的
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设核桃一共有x个，由题意得：
第一天剩下的核桃个数：（1-
）x-4=1 5
x-4，4 5
第二天吃掉的核桃数：
（
x-4）×4 5
-3=13 60
x-13 75
-3，13 15
所以最后剩下的个数：
x-4-（4 5
x-13 75
-3）=13 15
x-47 75
，2 15
因为最后剩下的个数
x-47 75
，必须是整数，2 15
所以当x=5时，原式=3，
所以至少剩下3个，
答：这时树上至少还剩3桃子．
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| Two friends were walking 1 the desert. During the journey they 2 . And the taller boy slapped the shorter 3 in the face. The shorter boy was hurt. But 4 , he wrote in the sand, "Today my best friend slapped me 5 the face." They 6 till they found a pond. And they decided to take a bath there. The shorter boy 7 in the mud and started to sink. He 8 , "Help! Help!" Luckily, he was pulled to 9 by his friend. After that, he carved on a stone, "Today my best friend 10 ." The taller boy asked him, "After I hurt you, you 11 in the sand, but now you carve on the stone. Why?" The shorter boy replied, "When someone 12 you, you should write it in the sand 13 the wind can erase (清除) it easily. However, when someone 14 for you, you should carve it on a stone from which the wind can 15 erase it." | ||||
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