A boxer weighs 97 kg at 4 months from a fight. He is on a diet that allows him to lose 3 kg per month until the day of the fight. How much will he weigh on the day of the fight?
In 4 months, he will lose 3 x 4 = <<3*4=12>>12 kilograms.
So his weight will be 97 – 12 = <<97-12=85>>85 kilograms.
#### 85