railway RRB NTPC Mock Test Series 2024-25 (CBT 1 + CBT 2) Quantitative Aptitude Ratio and Proportion

यदि 3, x, 12 और 2x + 7 अनुपात में हैं, तो 6x का मान क्या है?

1
\(\frac{21}{2}\)
2
42
3
21
4
\(\frac{7}{2}\)
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