Question

A food truck sells burgers, fries, and sodas. A combo meal costs $10 and consists of one of each item. A frugal family meal
costs $30 and consists of four burgers and two orders of fries and two sodas (for sharing). A fry-less family meal costs $28 and
consists of four burgers and four sodas. These meals do not have any discounts associated with them. Determine the cost of the
individual items.

The burgers cost $4.50, the fries cost $3.50, and the sodas cost $2.

The burgers cost $4, the fries cost $3, and the sodas cost $3

The burgers cost $5, the fries cost $2.50, and the sodas cost $2.50,

The burgers cost $5, the fries cost $3, and the sodas cost $2.

Answer 1

Answer:

  The burgers cost $5, the fries cost $3, and the sodas cost $2.

Step-by-step explanation:

The fry-less meal has 4 of (1 burger +1 soda) and is $28. This means ...

  1 burger + 1 soda = $7

This observation eliminates choices 1 and 3.

__

The family meal has 2 of (1 burger +1 fries) and 2 of (1 burger +1 soda). We know the cost of the latter is 2×$7 = $14, so the cost of the former is $30 -14 = $16. That means ...

  1 burger + 1 fries = $8

This observation eliminates choice 2.

__

The individual item cost is given by choice 4:

  The burgers cost $5, the fries cost $3, and the sodas cost $2.