Task: Question Answering
Input (English): Problem: a , b , c rent a pasture . if a puts 10 oxen for 7 months , b puts 12 oxen for 5 months and c puts 15 oxen for 3 months for grazing and the rent of the pasture is rs . 175 , then how much amount should c pay as his share of rent ? 
Options: a ) 23 , b ) 45 , c ) 15 , d ) 28 , e ) 18
Output (English): b