Quantitative Aptitude - Arithmetic Ability Questions

Find out the odd word/letters/number pair 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.

Sum of a fraction and thrice of its reciprocal is 73/20. What is the fraction?

If x = 11, the value of x5 - 12x4 + 12x3 - 12x2 + 12x - 1 is

If secA/√(sec2A ­- 1) = x, then value of x is

If x-1x = 10, then find the value of x4+1x2

On a certain principal if the simple interest for two years is Rs 2800 and compound interest for the two years is Rs 2996, what is the rate of Interest?

The difference between the ages of two sisters is 4 years when father's age is 54. Father is elder by 2 years to mother . Younger sister's age is half of mother's age. Find the age of elder sister.