Quantitative Aptitude - Arithmetic Ability Questions

If cosec θ + sinθ = 5/2 then the value of cosecθ - sinθ is

When a discount of 50% is given on a shirt, the profit is 25%. If the discount is 10%, then the profit is

Study the information carefully to answer the following questions: An urn contains 5 red, 3 green, 2 blue and 4 yellow marbles. If three marbles are picked at random, what is the probability that one is green and two are yellow?

If R = 97 and S = 155.2, then S is how much percentage more than R?

A T.V was sold at a profit of 5% If it had been sold at a profit of 10% , the profit would have been Rs. 1000 more. What is its cost price ?

If 1 + secA = x, then the value of x is

In the question, two equations I and II are given. You have to solve both the equations and give answer

$$\begin{gathered} x2-11x+28=0 \\ y2-18y+81=0 \end{gathered}$$

The compound interest earned in two years at 8% per annum is Rs 4160. What is the sum (in Rs) invested?