List of top Quantitative Aptitude Questions

The difference between the value of a number increased by 25% and the value of the original number decreased by 30% is 22. What is the original number?
A can do a piece of work in 10 days and B in 20 days. They work together but 2 days before the completion of the work, A leaves. In how many days was the work completed?
How much water must be added to 60 litres of milk, costing \rupee20 per litre, to get a mixture worth \rupee10\( \frac{2}{3} \) per litre?
The difference between the cost price and sale price of an article is \rupee240. If the profit is 20%, the selling price is:
The selling price of 30 items is equal to the purchase price of 25 items, then the profit or loss percent is:
In an examination, 35% of total students failed only in Hindi, 45% failed only in English and 20% failed in both, then the percentage of students who passed in both the subjects is:
The ages of two persons differ by 16 years. If 6 years ago, the elder one was three times as old as the younger one, then the present age of the elder one is:
The ages of A and B are in the ratio 6 : 5 and the sum of their ages is 44 years. What will be the ratio of their ages after 8 years?
Six years ago, the ratio of the ages of Ram and Ravi was 6 : 5. Four years hence, the ratio of their ages will be 11:10. What is Ravi's age at present?
If a boat goes 7 km upstream in 42 minutes and the speed of the stream is 3 kmph, then the speed of the boat in still water is:
A 160 m long train crosses a 160 m long platform in 16 seconds. Then the speed of the train is:
The simple interest on a sum of money is \( \frac{4}{9} \) of the principal. If the rate percent and time are numerically equal, then find the rate percent.
If \( \sqrt{x} + 14 = \sqrt{2601} \), then \( x \) is equal to:
If \[ \sqrt{218 + \sqrt{37 + \sqrt{144}}} = K, \text{ then value of } K \text{ is} \]
The fraction equivalent to \( \frac{2}{7}% \) is
In how many years will a sum of money double itself at 6.1% simple interest per annum?
The average of 7 consecutive numbers is 20. The largest of these numbers is:
The average of the first 100 positive integers is:
Simplify \[ \frac{7}{8} \times \frac{7}{8} + \frac{5}{6} \times \frac{5}{6} + \frac{7}{8} \times \frac{5}{3} \div \left( \frac{7}{8} \times \frac{7}{8} - \frac{5}{6} \times \frac{5}{6}\right) \]
A number less than 100, when divided by 4, 5 and 6 leaves remainder 2 in each case. The number is:
Which of the following is a pair of co-primes?
The H.C.F and L.C.M. of two numbers are 12 and 336 respectively. If one of the numbers is 48, the other is:
If the ratio of two numbers is 11 : 12 and their LCM is 528, then their H.C.F is:
The H.C.F of 3556 and 3444 is:
The product of two numbers is 9375 and the quotient, when the larger one is divided by the smaller, is 15. The sum of the numbers is