Once, Zhang Hong, Wang Feng and Chen Xu, three good friends, went to work in a taxi together. When they set out, they discussed the fare and shared it reasonably. Zhang Hong was there Wang Feng got off at 12 kilometers, Wang Feng got off at 24 kilometers, Chen Xu got off at 36 kilometers, and paid 72 yuan. How do you think the three of them should bear the fare? Please, it's before 8:30

Once, Zhang Hong, Wang Feng and Chen Xu, three good friends, went to work in a taxi together. When they set out, they discussed the fare and shared it reasonably. Zhang Hong was there Wang Feng got off at 12 kilometers, Wang Feng got off at 24 kilometers, Chen Xu got off at 36 kilometers, and paid 72 yuan. How do you think the three of them should bear the fare? Please, it's before 8:30

The fare is 24 yuan from 1 km to 12 km
12 to 24 km: 24 yuan
24 to 36 km: 72 yuan
24 yuan divided by 3, 8 yuan per person
24 divided by 2 Wang Feng Chen Xu 12 yuan per person
24 divided by 1 Chen Xu 24 yuan
Zhang Hong should pay 8 yuan
Wang Feng should pay 8 + 12 = 20 yuan
Chen Xu should pay 8 + 12 + 24 = 44 yuan
The total is 72 yuan
According to the distance, the taxi reserve price and one kilometer extra fare are not considered

A, B and C rent a taxi together to go home. Jia a gets off at one third of the way, and B gets off at two-thirds of the way. Finally, Li Qiang gets to the destination alone,
After paying 42 yuan for the fare, how can the three of them afford the fare more reasonably

The ratio of a, B and C is 1:2:3
A = 42 × 1 / 6 = 7
B = 42 × 2 / 6 = 14
C = 42 × 3 / 6 = 21

Xiaojun is 8 years old and his father is 34 years old. When Xiaojun was how old, his father's age was just three times that of Xiaojun

In another x years, my father's age is just three times that of Xiaojun
34+x=3(8+x)
34+x=24+3x
10=2x
x=5
Five years later, my father's age is just three times that of Xiaojun
Xiaojun age = 5 + 8 = 13