Answer :
total=100%
seated==35%
100%-35%=65%=not seated
91=not seated=65% of of all
find 100%
91=65% of all
91=0.65 times all
divide both sides by 0.65
140=all
140 students
seated==35%
100%-35%=65%=not seated
91=not seated=65% of of all
find 100%
91=65% of all
91=0.65 times all
divide both sides by 0.65
140=all
140 students