List of top Quantitative Aptitude Questions

Janaki's age is three times that of her daughter Sita. If Sita will be 15 years old in 5 years, how old will Janaki be in 5 years?
In a class of 150 students, 55 speak English, 85 speak Malayalam and 30 speak neither English nor Malayalam. How many students speak both English and Malayalam?
X can complete a project in 12 days and Y can complete it in 18 days. If they work together for 6 days, what fraction of the project remains unfinished?
A contractor can finish building a house in 60 days, while his assistant can finish it in 90 days. If they work together for 15 days, what fraction of the work is remaining?
A factory can produce 1000 units per day, while another factory can produce 1500 units per day. If they work together for 2 days, what fraction will be left if the total production required is 15000 units?
Sarah's age is now five times that of her nephew Jack. If Jack will be 11 years old, in 3 years, how old will Sarah be then?
If A can paint a room in 8 hours and B can paint the same room in 10 hours, how much of the room remains unpainted if they work together for 3 hours?
If Thomas is currently 20 years old and twice the age of his sister Mary, how old will Mary be in 5 years?
The value of equipment is Rs.1 crore. If depreciation is calculated at 10% annually using the written-down value method, what will be the value after 3 years?
John sold a product for 15% profit. If he had sold it for Rs.600 more, he would have made 25% profit. What is the cost price of the product?
If the price of a product is first increased by 20% and then by 10%, what is the total increase?
What was the original price of a product sold for Rs.1200 if the seller gave a discount of 25%?
When 25 is subtracted from 50% of a number, the result is 25. Find the number.
A number is doubled and 9 is added. If the resultant is trebled it becomes 75. What is that number?
If 15 men do a work in 9 days, 5 men can do the same work in how many days?
A train running at a speed of 72 kmph passes a telegraphic pole in 8 seconds. How much time will it take to cross a bridge of 180m?
Determine the compound interest on Rs.6 lakh for one year at 8% pa interest compounded half yearly.
Two trains start at 10 am from two stations and travel towards each other at speeds 40 kmph and 60 kmph. If the two stations are 400 km apart, when will they meet?
A person walks a certain distance and cycles back, taking a total time of 90 minutes. He could walk both ways in 120 minutes. How long will it take for him to ride both ways?
The incomes of A and B are in the ratio 3:2 and their expenses are in the ratio 5:3. If each saves Rs.700,000, what is the income of A?
What fraction of 1km is 400m?
Which of the following numbers is exactly divisible by 4, 5, 6, and 7?
Five alarms sound together at intervals of 5, 10, 15, 20, and 25 minutes respectively. At most, how many times will they all sound together in 2 hours?
How many times should the keys of the keyboard be pressed to enter the first 300 counting numbers?
A vessel contains 24 litres of milk and water in the ratio 5:3. How much water should be added so that the ratio becomes 1:1?