engineering recuitment NPCIL Plant Operator Mock Test General Aptitude Numerical Ability Numerical Computation
What is the value of x when \(81 \times {\left( {\frac{{16}}{{25}}} \right)^{x + 2}} \div {\left( {\frac{3}{5}} \right)^{2x + 4}} = 144 \)
1
1
2
-1
3
-2
4
Cannot be determined