Carlita was either sipping the hot chocolate while she was out, or else approximating the numbers. The exact number she reported is not possible. To see why, I'll do it strictly by the math:
Robins = 5 times Cardinals = 1 time
Total birds = 6 times
6 times = 25 birds
Divide each side by 6 : 1 time = 25/6 = 4-1/6 birds
Robins = 5 times = 20-5/6 of them Cardinals = 1 time = 4-1/6 of them
Total: (20-5/6) + (4-1/6) = 25 birds.
How many more robins than cardinals = (20-5/6) - (4-1/6) = 16-2/3 more.
The math works out fine. But if the numbers she reported are true, then some of what she saw was partial birds ... legs, or feathers, things like that. Eeeew. I don't want to talk about it.
