0 votes 0 votes How many triangles are formed by selecting points from a set of 15 points out of which 8 are collinear? (a) 800 (b) 824 (c) 844 (d) 854 Combinatory combinatory + – Rohit Gupta 8 asked Dec 25, 2017 Rohit Gupta 8 584 views answer comment Share Follow See all 5 Comments See all 5 5 Comments reply Show 2 previous comments hs_yadav commented Dec 25, 2017 reply Follow Share 399..correct 0 votes 0 votes Ajay Jadhav commented Dec 25, 2017 reply Follow Share 3 points from nonlinear group=7C3=35 2 points from nonlinear group and 1 point from collinear =(7C2)*(8c1) =168 2 points from collinear group and 1 from 7 points =(8C2)*(7C1)=196 35+168+196=399 1 votes 1 votes srestha commented Dec 25, 2017 reply Follow Share yes I did same 0 votes 0 votes Please log in or register to add a comment.
