If a 1 mm thick paper is folded so that the area is halved at every fold, then what would be the thickness of the pile after 50 folds ?	Choose the correct choice from the following answers
A) 100 km	B) 1000 km	C) 1 million km	D) 1 billion km	E) None
after 1 hold, thickness will be 2mm   After 2 hold, thich ness will be 4mm   after 50th hold thick ness will be 2^50 mm..converting to km....gives 1 billion km   ANSWER:1 billion km
<result>D</result>
If a 1 mm thick paper is folded so that the area is halved at every fold, then what would be the thickness of the pile after 50 folds ?