engineering recuitment NPCIL Plant Operator Mock Test Quantitative Aptitude Mensuration Solid Figures
A and B are two cones. The curved surface area of A is twice that of B. The slant height of B is twice that of A. What is the ratio of radii of A to B?
1
3 : 2
2
1 : 4
3
4 : 1
4
2 : 1