How much is it for a child by bus in Chengdu?

Children under the age of 6 who are 1.2 meters are free, and children under the age of 1.2 to 1.5 meters 14 are half price. According to the inquiry of Chengdu local treasure, the fare for children in Chengdu is as follows: children under six years old are free,1children under four years old are half price, and an adult passenger can bring two children under one meter two for free. If there are more than three passengers, you should buy all-adult tickets according to the number of passengers.