state gov Patna High Court Mazdoor (Group C) Mock Test 2025 Quantitative Aptitude Number System Quick Math
\({\left( {\frac{{27}}{8}} \right)^{ - \frac{2}{3}}}\) is equal to:
1
\(\frac{4}{{81}}\)
2
\(\frac{9}{{4}}\)
3
\(\frac{81}{{4}}\)
4
\(\frac{4}{{9}}\)