Current location - Training Enrollment Network - Mathematics courses - A pig weighs 400 Jin, and a bridge bears 200 Jin. How do pigs cross the bridge?
A pig weighs 400 Jin, and a bridge bears 200 Jin. How do pigs cross the bridge?
Pigs can swim, and because of the bridge, they can bear 200 Jin, which is not enough to support a 400 Jin pig. Therefore, this 400 kg pig should be able to cross the bridge after swimming.

Pigs (pigs) are vertebrates, mammals, domestic animals and ancient omnivorous mammals, mainly divided into domestic pigs and wild boars. At present, people think that pig is the abbreviation of swine family, and the physical characteristics of pigs are different according to different breeds.

Usually manifested as big ears, long head, short limbs, straight nose, fat body and narrow waist and back. The hair is thick and hard, and its color is usually white, pink, black, brown and fancy.

Name source

The calligraphy and painting "pig" is both pig-shaped and pig-shaped.

Pigs, the traditional Chinese character "pig" and the variant "furuncle {zhú}" were also called dolphins in ancient times, and they were also called just pigs. Also known as Yin Zhong, Tang Ang, Black-faced Lang and Black Lord.

According to the official newspaper, in the Tang Dynasty, people in Hongzhou raised pigs to get rich, which was called "Tang Ang". Yun Xian Miscellaneous Notes in the Tang Dynasty quoted Cheng Ping's Old Edition: "A black-faced lang, also known as a pig." The Collection of Historical Records quoted Deng Zhan as saying: "The East China Sea is called a pig." Therefore, Chen Yi at the beginning of the Han Dynasty and Chang Yi at the end of the Han Dynasty all took "Yi" as their name.