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u have a cup of cake which u r taking to your frnd home. on the way to your frnd's home u have to cross 7 bridges. at each bridge a demon is standing. he takes half of the cake with u and then gives u back doubling the half he took. if u have started with 2 cakes. how many cakes are there when u reach ur frnd's home?

u have a cup of cake which u r taking to your frnd home. on the way to your frnd's home u have to cross 7 bridges. at each bridge a demon is standing. he takes half of the cake with u and then gives u back doubling the half he took. if u have started with 2 cakes. how many cakes are there when u reach ur frnd's home?

Grade:12th pass

1 Answers

Nishant Vora IIT Patna
askIITians Faculty 2467 Points
4 years ago
Everytime you cross a bridge the cake be incresed 1.5 times

after 7 bridges , you have (1.5)^7 cakes

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