Quantitative Aptitude - Arithmetic Ability Questions

The least number that must be subtracted from 1294 so that the remainder when divided by 9, 11, 13 will leave in each case the same remainder 6 is:

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

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

If x - y = -9 and xy = -20, then find x2 + y2 ?

x, y be two acute angles, x + y < 90° and sin(2x - 20°) = cos(2y + 20°), the value of tan(x + y) is

Two points P and Q are at the distance of x and y (where y > x) respectively from the base of a building and on a straight line. If the angles of elevation of the top of the building from points P and Q are complementary, then what is the height of the building?

If √(1 - cos2A)/cosA = x, then the value of x is

If 13x2 = 172 - 92, find the value of x?