1 votes 1 votes iita asked Jan 29, 2017 iita 351 views answer comment Share Follow See all 3 Comments See all 3 3 Comments reply Lucky sunda commented Jan 29, 2017 reply Follow Share It is not pegion hole principle. It will be solved by generating function concept. We have to find coefficient of x15 here. 0 votes 0 votes iita commented Jan 29, 2017 reply Follow Share @lucky sunda how.......??? 0 votes 0 votes Samujjal Das commented Jan 29, 2017 reply Follow Share https://gateoverflow.in/94386/number-of-solutions 0 votes 0 votes Please log in or register to add a comment.