英语翻译1、ifweaskyoutoput6different-colorchairsintoonerow,howmanyarrangementscanyoumake?2、ifAandBstartoffatthesametimetothesamedirection,andthewholejourneyis165kmlong,Agotthedestination0.8hourearlier

Question

英语翻译
1、if we ask you to put 6 different-color chairs into one row,how many arrangements can you make?
2、if A and B start off at the same time to the same direction,and the whole journey is 165km long ,A got the destination 0.8 hour earlier than B,and when A arrived there,B still had 24km left,then how many hours did A spend on the whole journey?
或给出翻译,还有30分钟
3、

Answer 1

1. 如果让你把6把不同颜色的椅子排成一排,有多少种排列法?答案：6*5*4*3*2*1 = 720种2. A和B同时同方向向165公里以外的终点出发.如果A比B早0.8小时抵达终点,而当A到的时候B还有24公里没走,那么A在旅途上共花费多少时...