Question

谁帮我翻译一下这道题

The distance between A and B is 480km .A bus sets off form A with 90km/hr ,while a car sets off form B with 140km/hr;

(1)Suppose they sets off at the same time traveling in opposite directions. How long will they meet?
(2)suppose the bus sets off 1 hr earlier . How long do the meet?
(3)suppose they set off at the same time traveling contrary to each other . How long are the away form each other 600km
(4)suppose the bus sets off 1 hr earlier and they traveal in the same direction. how long dose the car catch up the bus?
谁可以给我答案呀..

Answer 1

A和B之间的距离是480千米。一辆巴士从A以90千米每小时的速度出发，与此同时，一辆汽车以140千米每小时的速度从B出发。
（1）如果他们开始同时向相反的方向移动。多久他们会相遇吗？
（2）如果巴士早出发一个小时。它们多长时间会相遇？
（3）如果他们同时出发，背向而行。它们多久相距600公里？
（4）如果巴士早出发一个小时，同向行驶。多长时间汽车赶上巴士？

Answer 2

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