Task: Question Answering
Input (English): Problem: when a stone is dropped from a building 200 m high , its speed is proportional to the time elapsed after dropping . the distance traveled is proportional to the square of the time elapsed . after 1 second the speed of the train was 10 m / sec and it was 190 m above the ground . when its speed is 25 m / sec , what would be its distance from the ground ? 
Options: a ) 140 m , b ) 137.5 m , c ) 125.75 m , d ) 142.5 m , e ) 152.5 m
Output (English): b