The areas of three adjacent faces of a cuboidal box are 160 cm2, 64 cm2 and 40 cm2, respectively. Find the lateral surface area of the box (in cm2) if the ratio of its length, breadth, and height is 5 : 4 : 4.

Find the approximate volume and surface area of a sphere of radius 6 cm. (Use π = 227)

Ram has two spherical balls of radius 10.5 cm each and Meena has six spherical balls of radius 7 cm each. What is the total volume of the balls that Meena has?