很久以前,地主巴依有一个果园,共有49棵果树,每行7棵,共7行,正好排成一个正方形(如下图,符号!表示一棵树)。一天,巴依嫌果树长得太密,影响生长,想砍掉一些。于是他叫来了长工,说:“只留5行,每行4棵,把其余的都砍掉。”说完就走了。长工平日恨透了巴依,很想找机会教训教训他。这时,阿凡提骑着小毛驴,哼着歌走过来了。长工马上把自己的心事告诉了阿凡提,请他给想个办法以教训一下巴依。阿凡提看了一下这些果树的排法,灵机一动,他把自己的想法告诉了长工,长工一听高兴极了,举起大斧砍了起来。 A long time ago, there was an orchard of landowners, 49 fruit trees in total, 7 rows per row, totaling 7 rows, forming a square just like the one below. One day, Pakistani fruit trees grow too dense, affecting growth, want to cut some. So he called a long-time worker, saying: “Only 5 lines, 4 lines, cut off the rest.” Long-haired day by hate Bayi, very much looking for opportunities to teach him lessons. At this time, Avanti riding a donkey, humming song came. Long-term workers immediately told his own mind Avanti, asked him to think of a way to lesson about Pakistan by. Avanti looked at the arrangement of these fruit trees, with a quick idea, he told his long-term workers ideas, long-handled a very happy, raised his ax cut it.