Quantitative Aptitude - Arithmetic Ability Questions

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

What is the simplified value of (sin A – cosec A)(sec A – cos A) (tan A + cot A)?

Which of the following equations has real and distinct roots?

If 2x - 3 = 3x - 5, then the numerical value of (x - 3)2 is

If x+1x2 = 3, then the value of x3+1x3 is:

If Sinθ = √3/2 and 0°<θ<90°, then the value of tan(θ-15°) is

Amit's age is four times the age of Babli. Babli's age is three times the age of Priya. If the present age of Priya is 5 years, what is the present age (in years) of Amit?

One of the two inlet pipes works twice as efficiently as the other. The two, working alongside a drain pipe that can empty a cistern all by itself in 8 hours, can fill the empty cistern in 8 hours. How many hours will the less efficient inlet pipe take to fill the empty cistern by itself?