A. (4,5,16)

B. (3,2,4)

C. (2,3,4)

D. (2,2,12)

The centroid of the triangle formed by the points (2,3,-1), (5,6,3),(2,-3,1) is

The locus of a point P such that the distances from P to the points (2,3,5) ,( 1,2,-1) are in the ratio 5:2 is

The locus of the point if the join of the points (-4,2,3), (2,-1,5) subtends a right angle at P is

The centroid of the tetrahedron formed by the points(3,2,5), (-3,8,-5), (-3,2,1),(-1,4,-3) is

In ABC where A(4,5,6), B(3,2,1), C(5,4,3), if p,q,r are lengths of the medians through A,B,C then ascending order of p,q,r is