

InterviewSolution
Saved Bookmarks
1. |
A train time table must be compiled for various days of the week, so that two trains twice a day depart for three days, one train daily for two days, and three trains once a day for two days. How many diferent time table can be compiled? |
Answer» 1 train 3 days, number 2=>2 days number 3 train=2 `(7!)/(3!2!2!)` `(7*6*5*4*3*2)/(3*2*2*2)` `30*7` `210`. |
|