Quantitative Aptitude - Arithmetic Ability Questions

What is the value of [tan (90 – A) + cot (90 – A)]2/[2 sec2(90 – 2A)]?

What are the co­ordinates of the centroid of a triangle, whose vertices are A(­2,­5), B(4,­4) and C(7,3)?

Select the odd letters from the given alternatives.

The diagonals of two squares are in the ratio 5:2.The ratio of their area is

If XY = a+23 and YX = 13, then find the value of X2 + Y2X2 - Y2.

If x - y = -8 and xy = 45, then (x2 + y2) is

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

If 5 - 2x ≥ 4 - x and 3(2 - x) > 2 - 4x; then x can take which of the following values?