The receipts refer to items in the Cheap Checkout module. The numbers are the internationally standardized PLU codes for fruits and vegetables.
Determining the items and adding up the prices in each receipt gives the following.
| Given entry | Item | Price |
|---|---|---|
| 1.0 × ALTOIDS | Mints | $6.39 |
| 1.0 × SWISS CH | Cheese | $4.49 |
| 1.0 × OREO COO | Cookies | $2.00 |
| 1.0 × 3277 VEG | 1.0 lb of Broccoli | $1.39 |
| 1.0 × 3626 FRU | 1.0 lb of Lemons | $1.74 |
| Total | $16.01 | |
| Given entry | Item | Price |
|---|---|---|
| 1.0 × DOMINO S | Sugar | $2.08 |
| 1.0 × CRISCO C | Canola Oil | $2.28 |
| 1.0 × CHIPS AH | Cookies | $2.00 |
| 1.0 × HERSHEY’ | Chocolate Bar | $2.10 |
| 1.0 × 3414 VEG | 1.0 lb of Potatoes | $0.68 |
| Total | $9.14 | |
| Given entry | Item | Price |
|---|---|---|
| 1.0 × DASANI W | Water Bottles | $9.37 |
| 1.0 × RUFFLE’S | Potato Chips | $3.25 |
| 1.0 × AXE BODY | Deodorant | $3.97 |
| 1.0 × CREST TO | Toothpaste | $2.50 |
| 0.5 × TYSON CH | 0.5 lb of Chicken | $1.00 |
| Total | $20.09 | |
| Given entry | Item | Price |
|---|---|---|
| 1.0 × SOCKS FR | Socks | $6.97 |
| 1.0 × KLENNEX | Tissues | $3.94 |
| 2.0 × 3152 FRU | 2.0 lb of Grapefruit | $2.16 |
| 0.5 × TYSON CH | 0.5 lb of Chicken | $1.00 |
| Total | $14.07 | |
In all four receipts, the dollar and cent amounts of the totals are in the range 1–26, so we can convert them to letters, which spells out the solution.
PAINTING
One of the receipts has no fruits and vegetables on it and can therefore be totalled up without knowing about PLU codes, giving a total of $20.09. This decodes to the letters “TI” which is a reasonable combination of letters in English and thus suggests that this letter conversion is indeed in effect. With that assumption in place, the fruits and vegetables in the Cheap Checkout manual can be narrowed down to those which give dollar and cent amounts in the range 1–26. For receipts 3 and 4 there is only one solution. For receipt 1, there are a few, but only one results in a reasonable word.