How many brownies must you start with to give your friend 2 brownies?

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You’re going to a friends house and want to give them some brownies. On the way to their house you cross 5 bridges. At each bridge you must pay a toll of half of your brownies to the owner. But they are all very nice and give you back a brownie from what you give them.

How many brownies must you start with to give your friend 2 brownies?

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    Just 2.

    silent47 Expert Answered on 27th August 2015.
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