List of top General Aptitude Questions on Percentage

A man spends $ \frac{2}{5} $ of his salary on rent, $ \frac{1}{4} $ on food, and $ \frac{1}{10} $ on transportation. What fraction of his salary is left?

In a survey, 60 % of 200 students prefer online classes, and 25 % of the remaining prefer hybrid classes. How many students prefer neither?

A shopkeeper increases the price of an article by 25% and then offers a discount of 20%. What is the net percentage change in the price?

An electricity utility company charges ₹7 per kWh. If a 40-watt desk light is left on for 10 hours each night for 180 days, what would be the cost of energy consumption? If the desk light is on for 2 more hours each night for the 180 days, what would be the percentage-increase in the cost of energy consumption?

Anubhav spent 14% of his income on electricity bills, 28% on rent, and 18% on shopping. If 1/4 of the remaining amount is Rs. 5120, how much did he spend on electricity bills?

In an examination, it is required to get 300 marks to pass. A student gets 225 marks and is declared fail by 10%. The maximum marks in the examination are:

The total population of a town is 50,000. The number of males and females increases by 10% and 15% respectively and consequently the population of the town becomes 56,000. What was the number of males in the town?

A three-phase, 50 Hz, 6-pole induction motor runs at 960 rpm. The stator copper loss, core loss, and the rotational loss of the motor can be neglected. The percentage efficiency of the motor is:

Which of the following process state transitions is/are NOT possible?

Details of prices of two items P and Q are presented in the above table. The ratio of cost of item P to cost of item Q is 3:4. Discount is calculated as the difference between the marked price and the selling price. The profit percentage is calculated as the ratio of the difference between selling price and cost, to the cost.
The formula for Profit Percentage is:
\[ \text{Profit \%} = \frac{\text{Selling Price} - \text{Cost}}{\text{Cost}} \times 100 \] The discount on item Q, as a percentage of its marked price, is:

In a company, 35% of the employees drink coffee, 40% of the employees drink tea, and 10% of the employees drink both tea and coffee. What % of employees drink neither tea nor coffee?

The number of minutes spent by two students, X and Y, exercising every day in a given week are shown in the bar chart above.
The number of days in the given week in which one of the students spent a minimum of 10\% more than the other student, on a given day, is

The current population of a city is 11,02,500. If it has been increasing at the rate of 5% per annum, what was its population 2 years ago?