railway RRB NTPC Mock Test Series 2024-25 (CBT 1 + CBT 2) Quantitative Aptitude Ratio and Proportion Simple Ratios
यदि a : b = \(\sqrt7 : \sqrt3\) , तो (3a + 2b) : (3a - 2b) का मान बराबर है:
1
\(\frac{2 + \sqrt{21}}{(2 - \sqrt{21})}\)
2
\(\frac{2 + \sqrt{21}}{(-2 + \sqrt{21})}\)
3
\(\frac{2 - \sqrt{21}}{(2 + \sqrt{21})}\)
4
\(\frac{2 + \sqrt{21}}{(-2 - \sqrt{21})}\)