Question 563888

I am making an attempt to teach a 7 year old
Suppose
First I buy a chicken and duck . I pay $12
Then I buy a duck & turkey. I pay $20
Finally I buy a chicken & turkey . I pay $16

So Now I have 2 chickens , 2 ducks and 2 turkeys . Total I paid $48

So 1 chicken ,1duck & 1 turkey will cost half as much = 24

Now all three cost $24 but chicken & duck cost $12. So Turkey is $12

and so on.

Was it useful? I am interested 

m.ananth@hotmail.ca