A. 2:1

B. 1:2

C. 2:3

D. 3:2

The circumcentre of the triangle formed by the points(1,2,3), (3,-1,5), (4,0,-3) is

The coplanar points(3,2,1), (5,6,5),(2,1,2),(0,-3,-2) form a

If the centroid of the triangle formed by (a,1,3), (-2,b,-5) and (4,7,c) is the origin then(a,b,c)=

The ratio in which yz-plane divides the line segment joining (3,4,5) ,(2,-3,1) is

The point dividing the join of (3, -2, 1} and (-2, 3, 11) in the ratio 2 : 3 is :