Wednesday, February 16, 2011

Shopping Spree Challenge Problem

Mary walks out of a store with 0 cents left. She had been to 4 stores and each time she walked in she payed 1 cent. Each time she walked out of a store she payed 1 cent. She spent 5 cents ON THINGS IN THE STORE in the last store, twice that much in the second to last store and so on. How much money did Mary start with?

Good luck!
Michael

2 comments:

  1. I used my brain to get this answer and my brain is pretty old but I came up with $.83. Is that right?

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