railway RRB NTPC Mock Test Series 2024-25 (CBT 1 + CBT 2) Quantitative Aptitude Mensuration Solid Figures
If V and S denote the volume and the total surface area of a cuboid (of sides a, b and c) respectively, then which of the following is true?
1
(1/V) = (2/S) (1/a + 1/b + 1/c)
2
0 = (2/S)(1/a + 1/b + 1/c)
3
(1/V) = (2/S)(1/a - 1/b - 1/c)
4
(1/V) = (1/S) (2 + 1/b + 1/c)