Stuart's Spectacular Students

This is dedicated to my amazing students. The goal is for each and every one of them to feel unstoppable by the time they walk out of the classroom door for the final time in May. This chronicles their journey; their own Chronicles of Self-Actualization.

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Thursday, May 17, 2007

Holy Cow! - The Solution

1. Title: Holy Cow!

A farmer brings his cows to market for sale.
The 1st buyer buys half of the farmers cows, plus 1/2 a cow.
A 2nd buyer buys half of the remaining (after the 1st buyer) cows, plus 1/2 a cow.
The 3rd and final buyer buys half of the remaining (after the 1st and 2nd buyers) cows, plus 1/2 a cow.
All three buyers bought whole cows.
The farmer sold all of his cows he brought to market.

How many cows did the farmer bring to market?

Answer: Seven

Solution:
The 1st buyer bought 1/2 of seven = 3.5, plus 1/2 a cow (.5) = 4 cows (leaving 3 cows remaining)
The 2nd buyer bought 1/2 of the three remaining = 1.5, plus 1/2 a cow (.5) = 2 cows (leaving 1 cow remaining)
The 3rd buyer bought 1/2 of the one remaining = .5, plus 1/2 a cow (.5) = 1 cow


Congratulations to all who solved the puzzle. Look for "Who is that man?"

1 Comments:

  • At 9:10 AM , Anonymous briana said...

    i was right, i was right yayyyyyyyyyyyyy :) CI=========> its a sword

     

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