Math Chapter Wise Sphere, Cone And Cylinder English MCQ UPPSC GDC 2021 Q.The spheres 2 2 2 x + y + z = 25 and 2 2 2 x + y + z – 24x – 40y –18z + 225 = 0 ADo not intersect BIntersect in two points CTouch internally DTouch externally Show answer Correct answer: Touch externally