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Clean Tops (Posted on 2006-09-11) Difficulty: 3 of 5
Three girls went on a vacation, each wearing a red "Love to travel" T-shirt. They each have brought 9 other clean tops, but are fairly active, and as a result each top becomes dirty after wearing it for a day,

They wanted to wear a clean top each day, so fortunately, their cabin came with a washer and drier, however, they could only wash two girls' clothes at a time, so the first and third girls had to wait until the next day to wash their clothes once each.

Their vacation lasted 3 weeks (including the day they left), so each girl washes her clothes twice while on vacation.

Here is a list of when they wore what. (Note they wore only one top per day.)

First girl:
  1. Red "Love to travel" T-shirt
  2. Floral tank top
  3. Green camisole
  4. White "I *heart* levik" T-shirt
  5. Gray short-sleeve shirt
  6. Blue long-sleeve shirt
  7. Pink poodle T-shirt
  8. Orange tank top
  9. Green camisole
  10. Yellow "Sled Shiver Sally" T-shirt
  11. Floral tank top
  12. Gray short-sleeve shirt
  13. Black "Night Owl" T-shirt
  14. Pink poodle T-shirt
  15. Red "Love to travel" T-shirt
  16. Yellow "Sled Shiver Sally" T-shirt
  17. Blue long-sleeve shirt
  18. Orange tank top
  19. Floral tank top
  20. Green camisole
  21. "I *heart* levik" T-shirt

Second girl:
  1. Red "Love to travel" T-shirt
  2. Floral short-sleeve shirt
  3. Orange tank top
  4. Green cougar T-shirt
  5. Gray long-sleeve shirt
  6. White "Mind your Pids and Queues" T-shirt
  7. Yellow sunshine shirt
  8. Black "Dark as Night" T-shirt
  9. Green cougar T-shirt
  10. Orange tank top
  11. Red "Love to travel" T-shirt
  12. Gray long-sleeve shirt
  13. Pink tank top
  14. Floral short-sleeve shirt
  15. White "Mind your Pids and Queues" T-shirt
  16. Blue tank top
  17. Yellow sunshine shirt
  18. Orange tank top
  19. Floral short-sleeve shirt
  20. White "Mind your Pids and Queues" T-shirt
  21. Red "Love to travel" T-shirt

Third girl:
  1. Red "Love to travel" T-shirt
  2. Floral long-sleeve shirt
  3. Gray "Undecision" T-shirt
  4. Pink "Pretty in Pink" T-shirt
  5. Blue coy toy T-shirt
  6. Orange short-sleeve shirt
  7. Yellow tank top
  8. Floral long-sleeve shirt
  9. Blue coy toy T-shirt
  10. White "Welcome to Truth Town" T-shirt
  11. Yellow tank top
  12. Black "Fun at Night" T-shirt
  13. Pink "Pretty in Pink" T-shirt
  14. Orange short-sleeve shirt
  15. Green long-sleeve shirt
  16. Gray "Undecision" T-shirt
  17. Blue coy toy T-shirt
  18. Floral long-sleeve shirt
  19. Yellow tank top
  20. Black "Fun at Night" T-shirt
  21. Red "Love to travel" T-shirt
From this information, what day did each girl wash her clothes?

Notes: Each girl washes her current top when she washes her other dirty clothes, so it is clean for following days. Differences between lights/darks or types of tops do not matter in the washing process.

See The Solution Submitted by Gamer    
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Comments: ( Back to comment list | You must be logged in to post comments.)
re: Solution (spoiler) | Comment 2 of 9 |
(In reply to Solution (spoiler) by Jyqm)

But girl 3 wore her Yellow Tank Top on days 7 and 11. If she only did her laundry on days 6 and 16, it would be dirty.
  Posted by Charlie on 2006-09-11 23:45:51

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