Quantitative Aptitude - Arithmetic Ability Questions

The ratio of present ages of Ranjini and Shahid is 5:4. After 13 years the ratio of their ages will be 6:5. What is Ranjini's present age?

If 2x + 3(5-2x) > 2 - 3x < 2x - x/3, then x can take which of the following values?

The value of x13+x-13x23-1+x-23

If α + β = 90° and α:β = 2:1, then the ratio of cosα to cosβ is

If a - b = 2 and ab = 15, then what is the value of a3- b3?

If 6x + 4(2-x) > 3x -2 > 5x/2 - x/4; then value of x is

If 4(2x - ­4) -­ 2 > 3x -­ 1 ≥ 4x - ­7, then x can take which of the following values?

The value of Cot17°Cot73°Cos222° + 1Cot17°Sec268° is