During a dull football game,1/4 spectators were left after 1 hour.During the next hour 20,000 spectators left. there were 1/12 of the original number of spectators still watching the game. how many spectators were originally present.

Answer 1

x of them were there

x/4 after an hour

x/4 - 20,000 after two hours

that is x/12

so
x/12 = x/4 - 20,000

3 x/12 - x/12 = 20,000

x/6 = 20,000

x = 120,000 big game