Quantitative Aptitude - Arithmetic Ability Questions

Mr. Murthy invested Rs. 16,000 in a scheme. How much will he get on matuirity, if he invested it at 20% per annum C.I. for 9 months, compounded quarterly?

If 2x + 6y = 3xy and 10x -­ 3y = 4xy, find x, y.

In the given figure, in a right angle triangle ABC, AB = 12 cm and AC = 15 cm. A square is inscribed in the triangle. One of the vertices of square coincides with the vertex of triangle. What is the maximum possible area (in cm.sq) of the square?

If cos ­-11π/6 = x, then the value of x is

Find k, if the line 4x - y = 1 is perpendicular to the line 5x - ky = 2?

If sin3A = x, then value of x is

A watch having marked price as Rs 8400 is sold for Rs 5040 after two successive discounts. If the first discount is 25% then what is the second discount percentage?

PQRS is a square, M is the mid-point of PQ and N is a point on QR such that NR is two-third of QR. If the area of ΔMQN is 48 cm2 , then what is the length (in cm) of PR ?