Draw a picture?

If A is a sweet that costs N10 for 2, and B is a sweet that costs N10 for 6, then I can't make a picture of 3 sweets with equal numbers of each type, but I can draw a jar of 60, with 30 of each type:

AAAAA AAAAA

AAAAA AAAAA

AAAAA AAAAA =30 @ N10 for 2 = 15*N10 = N150

BBBBB BBBBB

BBBBB BBBBB

BBBBB BBBBB = 30 @ N10 for 6 = 5*N10 = N50

The total cost is N200 for 60 sweets; for N10, we'd get 1/20 of these, which is 3.

But

@The Highlander's comment is very significant. No set of 3 that you get will really be worth N10:

- AAA would be worth N15,
- AAB would be worth N11 2/3,
- ABB would be worth N8 1/3, and
- BBB would be worth N5.

Clearly, they wouldn't let you serve yourself (which would be like selling mixed nuts and letting you pick out the best), but would sell randomly chosen bags, so it would be like a lottery. And I suppose some people like taking a chance. But they certainly wouldn't sell a bag of 3 for N10.