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How many cakes do Rohan have to carry with him so he can reach his grandma home with exactly 2 cakes?

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Rohan is on his way to visit his girlfriend, who lives at the end of the state.It's her birthday, and he want to give her the cakes that he has made.Between his place and her girlfriend's house, he need to cross 7 toll bridges.
Before you can cross the toll bridge, you need to give them half of the cakes you are carrying, but as they are kind trolls, they each give you back a single cake.

How many cakes do Rohan have to carry with him so he can reach his girlfriend's home with exactly 2 cakes?

posted Jun 20, 2014 by Simranjeet Singh

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4 Answers

+1 vote

he should carry only 2 cakes with him. So he will reach his girlfriend home with exactly 2 cakes.

Answer is 2 Cakes.

answer Jun 20, 2014 by Anuj Agrawal
+1 vote

he had only 2 cakes with him.
at each toll he gives half of cake i.e) 1 cake
they in turn give 1 cake.
so at each toll, the transaction is 0
so ans is 2

answer Aug 19, 2014 by Rukmaniselvaraj
0 votes

He just have to carry two cakes.

answer Jun 20, 2014 by Binu Mon
0 votes

Answer is 2 cakes

answer Sep 26, 2017 by Mogadala Ramana



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