Maths's problem solving (answer)

Well, we know enough information to make some equations and solve them. Things we know: 1) 52 legs total 2) Ducks have 2 legs 3) Cows have 4 legs 4) No other legs are being counted 5) 4 more cows than ducks We have 2 unknowns: # of ducks, we'll call that D, and # of cows,...