A group of friends went for lunch together. After lunch, half of
them went home. Among those who remained, 7 of them went
shopping together while the rest went for a movie. For those
Who went for the movie, 4 of them went home after the movie
and the remaining 5 of them decided to go for dinner. How
many friends went for lunch together?
1 answer
x - x/2 - 7 - 4 = 5