Answer :
4 are new and favourites
14 are new but not favourites (18 - 4)
8 are favourites but not new (12 - 4)
This means 4 + 14 + 8 = 26 are either new or favourites
He will give away 63 - 26 = 37 toys
14 are new but not favourites (18 - 4)
8 are favourites but not new (12 - 4)
This means 4 + 14 + 8 = 26 are either new or favourites
He will give away 63 - 26 = 37 toys