Quantitative Aptitude - Arithmetic Ability Questions

A root of equation ax2 + bx + c = 0 (where a, b and c are rational numbers) is 5 + 3√3. What is the value of (a2 + b2 + c2)/(a + b + c)?

Triangle DEF is right angled at E. If cot D = 5/12, then what is the value of sin F?

Which of the following is TRUE?

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

In the following question, four groups of three numbers are given. In each group the second and third number are related to the first number by a Logic/Rule/Relation. Three are similar on basis of same Logic/Rule/Relation. Select the odd one out from the given alternatives.

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

If A : B = 3 : 5, then what is the value of A + B : B?

Find the sum of interior angles of a dodecagon?