Quantitative Aptitude - Arithmetic Ability Questions

What will be the sum of the measures all the interior angles of a polygon having 14 sides?

Which of the following quadratic equations has real roots?

7 litres mixture of milk and water contains 30% water. 3.5 litres of milk is added to this mixture. What is the percentage of water in the new mixture?

What is the value of Tan 45° - 1/√3 Sec 60°?

The amount received at 10% per annum compound interest after 3 yrs is Rs 10,648. What was the principal (in Rs)?

What is the compound interest on Rs. 48,000 for 2 years at 20% p.a., if interest is compounded annually?

Two students appeared for an examination. One of them secured 9 marks more than the other and his marks were 56% of the sum of their marks. The marks obtained by them are

What is the value of √2 Sec 45° + (1/√3)Tan 30°?