instruction:
The task is to generate the correct answer for a given math problem.
question:
Problem: 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 ?
answer:
1 billion km', 'e ) none'


question:
Problem: the average of 10 numbers is 0 . in those 10 , at the least , how many may be greater than or equal to zero ?
answer:
1


question:
Problem: a car started running at a speed of 36 km / hr and the speed of the car was increased by 2 km / hr at the end of every hour . find the total distance covered by the car in the first 10 hours of the journey .
answer:

45 km