其它
Which of the following calculations shows how to work out the number of seconds in~~24 days? 
Overseas Competition->Knowledge Point->Combinatorics->Time Problem
1 day = 24 hours，$$1$$ hour = 60 minutes，$$1minute$$ = 60 seconds，$$24$$ days = (24 x 24) hours = [(24x 24) x 60] minutes = 24x 24x 60x 60 seconds 