List of top Quantitative Aptitude Questions on Arithmetic Operations asked in NPAT

The value of \( \left( \frac{2}{3} \div \frac{8}{15} + 7 \times \frac{1}{2} \times 3 \times 5 \right) \div \left( 5 \div \frac{5}{6} - 3 \frac{1}{2} \times 2 \times \frac{1}{10} \right) \) of \( 2 \frac{7}{8} \) is:
What should be added to the following expression so that the sum is 1? \[ \frac{9}{4} \times \frac{7}{18} \text{ of } \frac{72}{49} - \frac{7}{5} \text{ of } \frac{5}{28} \times \frac{2}{5} + \frac{3}{4} \times 2 \div \frac{31}{7} - \frac{2}{3} \times 7 \times \frac{3}{10} \]
The value of \( \frac{(9 \times 0.81 - 4 \times 0.64)}{(3 \times 0.9 + 2 \times 0.8)} \times (9 \times 0.81 + 4 \times 0.64 - 12 \times 0.72) \) lies between:
The value of \( 5^{2 \times \frac{1}{4}} - \left( \frac{5}{32} \times \frac{3}{5} \times \frac{7}{8} \times \frac{3}{16} \right) \) is: