Quantitative Aptitude - Arithmetic Ability Questions

If x+3y=-3x+y, then x22y2 is equal to

U, V and W together can make a chair in 20 minutes. U and V together can make it in 25 minutes. How much time will (in minutes) W alone take to make the chair?

If ABCD is a trapezium, AC and BD are the diagonals intersecting each other at point O. Then AC : BD is

Two fractions are such that their product is ­9/10 and sum is ­13/40. What are the two fractions.

A chord of a circle is equal to its radius. A tangent is drawn to the circle at an extremity of the chord. The angle between the tangent and the chord is

The upper part of a tree broke at a certain height makes an angle of 60 ° with the ground at a distance of 10 m. from its feet. The original height of the tree was

38% of 250 is equal to

If 1/√(1 + cot2A) = x, then value of x is