IBPS PO Quantitative Aptitude: Percentages and Equations questions with solutions

Q1. \(\frac{4}{5} \times 45\%\) of ? = 75 + 20% of 125

1. 4
2. 5
3. 6
4. 7

Answer: 4

The right-hand side is 75 + 20% of 125 = 75 + 25 = 100. The left-hand side becomes \(\frac{4}{5} \times \frac{45}{100} \times ? = \frac{9}{25}?\), so \(\frac{9}{25}? = 100\), giving ? = 4. Hence, the correct answer is 4.