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A better deal (Posted on 2002-06-21) Difficulty: 2 of 5
Yoric the worker came to a fair looking for a job.

There, Arley, an artisan, offered him the following terms:

"I wil pay you once every 67 days, one gold coin for a day of work, minus five coins for upkeep - a total of 62 coins in all!"

Suddenly a competing artisan named Bentley interrupted:

"Don't work for Arley, come work for me instead. I will also give you one coin a day, minus five for upkeep, but I will pay you every 57 days instead of 67. That's right, stick with me, and you'll get your 52 coins a whole ten days faster!"

Even though he wasn't very good at math, Yoric was a smart fellow and quickly figured out who was offering a better deal. Can you do it without using a calculator or performing complex fractional arithmetics?

See The Solution Submitted by vohonam    
Rating: 2.6500 (20 votes)

Comments: ( Back to comment list | You must be logged in to post comments.)
solution-haven't looked | Comment 13 of 14 |
Simple. Arley is giving the better deal because he takes his 5 coins for upkeep out less often over any given period of time than Bentley, so you keep more of your money with Arley
  Posted by sean on 2005-08-29 01:31:53
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