List of top General Aptitude Questions on Algebra

The sum of three numbers is 136. If the ratio between the first number and the second number is 2:3 and that between the second and the third number is 5: 3, then the first number is:
A and B can complete a work in 12 days and 15 days respectively. They work together for 5 days and then A leaves. In how many more days will B complete the remaining work?
The area of a circle is 154 cm². What is the circumference of the circle? (Use π = 22/7)
The ratio of incomes of A and B is 5 : 7 and their expenditures are in the ratio 3 : 5. If each saves ₹4000, then A’s income is:
A shopkeeper marks an article 25% above the cost price and gives a discount of 10%. His profit percentage is:
A sum of money becomes Rs.9680 at 10% simple interest per annum in 4 years. The principal amount is:
A shopkeeper gives 10% discount on an article marked at Rs.2500 and still gains 8%. The cost price of the article is:
If $ x + \frac{1}{x} = 3 $, what is the value of $ x^2 + \frac{1}{x^2} $?