Quantitative Aptitude - Arithmetic Ability Questions

In the following question, select the odd letter from the given alternatives.

If sinA = x, then x is equal to

∆ABC is right angled at B. If m∠A = 30°, then find the value of (sinC + 1/3).

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

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

AB is a diameter of a circle. C is a point on the tangent drawn at A . If AB = 8 cm and AC = 6 cm , then the length of BC is

What is the slope of the line parallel to the line passing through the points (4,-2) and (-3,5)?

If A, B and C are denoting Mean, Median and Mode of a data and A : B = 9 : 8. Then the ratio of B : C is

A can do a piece of work in 10 days and B can do it in 12 days. They work together for 3 days. Then B leaves and A alone continues. 2 days after that C joins and the work is completed in 2 days more. In how many days can C do it, if he works alone ?