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 ?

A. 71 years B. 72 years C. 74 years D. 77 years

A. Rs. 4, Rs. 23 B. Rs. 13, Rs. 17 C. Rs. 15, Rs. 14 D. Rs. 17, Rs. 13

A. 2/13 B. 13/40 C. Data inadequate D. None of these

A. 8 B. 12 C. 16 D. 24