In this task, you need to answer the given multiple-choice question on the physics. Classify your answers into 'a', 'b', 'c', 'd', and 'e'.

[EX Q]: Problem: a trader sells 45 meters of cloth for rs . 4500 at the profit of rs . 14 per metre of cloth . what is the cost price of one metre of cloth ? 
Options: a ) rs . 80 , b ) rs . 86 , c ) rs . 90 , d ) rs . 95 , e ) none of these
[EX A]: b

[EX Q]: Problem: the radius of a circular wheel is 1.75 m , how many revolutions will it make in traveling 1 km ? 
Options: ['a ) 1000', 'b ) 2788', 'c ) 2677', 'd ) 2899', 'e ) 2771']
[EX A]: a

[EX Q]: Problem: how many minutes does aditya take to cover a distance of 400 m , if he runs at a speed of 20 km / hr ? 
Options: a ) 1 1 / 5 min , b ) 4 1 / 5 min , c ) 3 1 / 5 min , d ) 2 1 / 5 min , e ) none of these
[EX A]:
a