The area of the floor of a room is 20 m² that of a longer wall 15 m² and of the shorter wall 12 m², find the edge of the new cube?

Related Mcqs:

Surface area of a sphere is 2464 cm2. If its radius is doubled, then the surface area of _________?the new sphere will be

A. 4920 cm2 B. 4727 cm2 C. 9856 cm2 D. 19712 cm2...

The edge of a cube is 2a cm. Find its surface?

A. 6a2 cm2 B. 8a2 cm2 C. 12a2 cm2 D. 24a2 cm2...

The spherical ball of lead 3 cm in diameter is melted and recast into 3 spherical balls. The diameters of two of these are 1 ½ cm and 2 cm respectively. The diameter of third ball is?

A. 2.66 cm B. 2.5 cm C. 3 cm D. 3.5 cm...

Three cubes of metal whose edges are 9, 12 and 15 cm respectively, are melted and one new cube is made. Find the edge of the new cube?

A. 21 cm B. 19 cm C. 32 cm D. 18 cm...

If the volumes of two cubes are in the ratio 8: 1, the ratio of their edges is_________?

A. 8: 1 B. 2√2 : 1 C. 2 : 1 D. None of these...