Quantitative Aptitude - Arithmetic Ability Questions

Select the odd word/letters/number/number pair from the given alternatives.

Select the odd word/letters/number/number pair from the given alternatives.

If a3 + b3 + c3 - 3abc = 0, then the value of a2/bc + b2/ac - 3.

If  2x+14x = 1, then the value of  x2+164x2is

If 5x/2 - [7(6x - 3/2)]/4 = 5/8, then what is the value of x?

If x2-3x+1=0, then x+1x is (x≠0)

The numerator of a fraction is multiple of two numbers. One of the numbers is greater than the other by 2. The greater number is smaller than the denominator by 4. If the denominator 7+C (C > -7) is a constant, then the minimum value of the fraction is

The sum of a fraction and 3 times its reciprocal is 31/6. What is the fraction?