online test Interview Category

A cubical box is divided into four identical chambers that can hold one ball each. In how manyways can one fill the box with 3 blue balls, 3 red balls and 3 green balls?

Read Solution (Total 2)

online test Other Question

The volume of a pyramid varies jointly as its height and the area of its base; and when the area of the base is 60 sq. dm and the height 14 dm, the volume is 280 cubic dm. What is the area of the base of a pyramid whose volume is 390 cubic dm and whose height is 26 dm?