总经理平常每次按时下班离开公司时,都是由司机从他家里开出轿车在同一时刻接他回家。有一次,司机无意之中比往常迟半小时才出发,但他还是按往常的速度往公司开。总经理出公司门口时看不到来接的轿车,于是步行沿着通往他家的公路前进,直到遇到来接他的轿车才坐上车,而后轿车也原速返回,回到家里他发现比平常晚22分钟到家。那么请你算一算,总经理步行的时间有多长? Every time when the general manager leaves the company on time and on time, the driver picks up his car from his home and picks him up at the same time. On one occasion, the driver inadvertently set out half an hour later than usual, but he still opened the company as usual. General manager out of the company when the door can not see the car to pick up, so walk along the road leading to his home, until it meets the car came to pick him up the car, and then the car also returned to the original speed, back home he found than 22 minutes home usually late. So how do you calculate the length of time that the general manager will walk?