Answer :
Step-by-step explanation:
ratio of passengers sitting upstairs and sitting downstairs
=35:28
=5:4
ratio of occupied seats to empty seats;
occupied seats=35+28=63
empty seats=81-63=18
occupied seat to empty seat =63:18
7:2
Step-by-step explanation:
ratio of passengers sitting upstairs and sitting downstairs
=35:28
=5:4
ratio of occupied seats to empty seats;
occupied seats=35+28=63
empty seats=81-63=18
occupied seat to empty seat =63:18
7:2