A shepherd was driving a flock of sheep, and someone followed him with sheep and asked the shepherd, "Do you have 100 sheep in this flock?" The shepherd said, "If I have another flock of such sheep, plus half of this flock of sheep, plus your sheep, it will be exactly 65,438+000."
( 100- 1) ÷ ( 1+ 1+ 1/4) = 36.