0 votes 0 votes Isha Gupta asked Jun 12, 2016 Isha Gupta 816 views answer comment Share Follow See 1 comment See all 1 1 comment reply ManojK commented Jun 12, 2016 reply Follow Share here too https://gateoverflow.in/47879/requires-different-colours-proper-colouring-chromatic-number 0 votes 0 votes Please log in or register to add a comment.