Quantitative Aptitude - Arithmetic Ability Questions

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

Find x, if 5x-6+5x+6 = 6

If x = at2 and y = 2at then

If a - b = 2 and ab = 8, then what is the value of a3 - b3?

At what point does the line 2x + 5y = -6 cuts the X-axis?

A sum of Rs 10000 becomes Rs 14641 when invested at compound interest at the yearly interest rate of 20% per annum. If the compounding is done half yearly, then for how many years was the sum invested?

Sum of two numbers is thrice their difference. Their ratio is

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