railway RRB Group D Mock Test Series 2024-25 Quantitative Aptitude Algebra Identities

यदि x + y = 6 है और \(\frac{1}{x} + \frac{1}{y} = \frac{18}{5}\) है, तो (x2 + y2) का मान है:

1
\(28 \frac{3}{5}\)
2
\(42 \frac{5}{7}\)
3
\(15 \frac{3}{5}\)
4
\(32 \frac{2}{3}\)
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