An old father left seventeen camels (骆驼) and a will (遗嘱) to his three sons after he died.
According to the will, the 1 son should get half of the seventeen camels, the middle son should be given one-third of the 2 camels, and the youngest son should be given one-ninth of the seventeen camels.
However, it is not 3 to divide seventeen into half or that seventeen can be divided by three orby nine. The three sons started to 4 with each other. Finally, they 5 to visit an old man. After 6 the whole thing, the old man brought one of his 7 camels and added it to the seventeen. Then the total number was 8 .
Now, the old man started to 9 the father's will. Half of eighteen is nine, so he gave the eldest son nine camels. One third of eighteen is six, so he gave the middle son six camels. One ninth of eighteen is two, so he gave the youngest son two camels.
Then sum these 10 up: nine plus six, and then plus two, so it is seventeen. At last, it left one camel, and the three sons returned the camel to the old man.
