Quantitative Aptitude - Arithmetic Ability Questions

Three solid spheres have their radii r1, r2 and r3. The spheres are melted to form a solid sphere of bigger radius. Then the radius of the new sphere is

(1132 + 1152 + 1172 - 113 x 115 - 115 x 117 - 117 x 113) is equal to

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

Point P is the midpoint of segment AB. Co-ordinates of point P are (2,1) and point A are (11,5). Co-ordinates of point B are

Two whole numbers are such that the square of first number exceeds the second by 112 and the ratio of the numbers is 4:3. What is thevalue of smaller number?

If secA -­ tanA = x, then the value of x is

What is the value of sec -2π/3 ?

20% of a = b, then b% of 20 is the same as _________ of a.