Quantitative Aptitude - Arithmetic Ability Questions

If x + y = 3, then what is the value of x3 + y3 + 9xy?

A solid hemisphere has radius 14 cm. It is melted to form a cylinder such that the ratio of its curved surface area and total surface area is 2 : 3. What is the radius (in cm) of its base?

In the following question, select the odd word from the given alternatives.

The solution set of 4x - 3y = 47 and 3x + y = 32 is

The ratio of incomes of C and D is 3 : 2. Ratio of income of D and E is 5 : 4. If one-third of C’s income is Rs 4000 more than the half of E’s income, then what is the D’s income (in Rs)?

The ratio of two numbers is 5 : 6. If their product is 1470, then what is the sum of both the numbers?

A shopkeeper marks his goods 40% above the cost price and allows a discount of 25% on it. His gain % is

Length and breadth of a rectangle are increased by 40% and 70% respectively. What will be the percentage increase in the area of rectangle?