John's dog has a litter of 8 puppies.  He gives away half of them.  He keeps one of the remaining puppies.  He then takes the remaining puppies and sells them each for $600.  He had to give the owner of the stud $300.  How much money does he profit?
He had 8/2=<<8/2=4>>4 left after giving some puppies away
He then keeps one so he sells 4-1=<<4-1=3>>3 puppies
That means he made 3*600=$<<3*600=1800>>1800
So his profit was 1800-300=$<<1800-300=1500>>1500
#### 1500