railway DFCCIL Executive 2025 Mock Test Quantitative Aptitude Ratio and Proportion Simple Ratios

यदि x, y3 - 1 के व्युत्क्रमानुपाती है और y = 3 होने पर 6 है, तो y = 7 होने पर x का मान ज्ञात कीजिए।

1
\(\frac{28}{57}\)
2
\(\frac{26}{57}\)
3
\(\frac{26}{58}\)
4
\(\frac{27}{57}\)
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