Teaching BPSC बिहार मध्य विद्यालय (6 to 8) शिक्षक भर्ती 4.0 Mock Test Quantitative Aptitude Mensuration Solid Figures
If V be the volume and S be the surface area of a cuboid with dimensions a × b × c, then which of the following is true?
1
\(\frac{1}{V} = \frac{2}{S}\left( {\frac{1}{a} + \frac{1}{b} + \frac{1}{c}} \right)\)
2
\(\frac{1}{V} = \frac{2}{S}\left( {a + b + c} \right)\)
3
\(\frac{1}{S} = \frac{2}{V}\left( {\frac{1}{a} + \frac{1}{b} + \frac{1}{c}} \right)\)
4
More than one of the above
5
None of the above