Task: Question Answering
Input (English): Problem: a starts business with rs . 4500 and after 7 months , b joins with a as his partner . after a year , the profit is divided in the ratio 2 : 3 . what is b â € ™ s contribution in the capital ? 
Options: a ) 24887 , b ) 20778 , c ) 16200 , d ) 9000 , e ) 2811
Output (English): c