Advertisements
Advertisements
Question
A cubical container of side 6.5 m is to be painted on the entire outer surface. Find the area to be painted and the total cost of painting it at the rate of ₹ 24 per m2
Advertisements
Solution
Side of a cube (a) = 6.5 m
Total surface area of the cube = 6a2 sq.units
= 6 × 6.5 × 6.5 sq.m
= 253.50 sq.m
Cost of painting for 1 sq.m = ₹ 24
Cost of painting for 253.5 sq.m = 253.5 × 24
= ₹ 6084
∴ Area to be painted = 253.50 m2
Total cost of painting = ₹ 6084
APPEARS IN
RELATED QUESTIONS
Find the side of a cube whose surface area is 600 cm2.
Find the volume of a cube whose side is 1.2 m .
Find the surface area of a wooden box whose shape is of a cube, and if the edge of the box is 12 cm.
Two cubes, each of volume 512 cm3 are joined end to end. Find the surface area of the resulting cuboid.
Three cubes whose edges measure 3 cm, 4 cm, and 5 cm respectively are melted to form a new cube. Find the surface area of the new cube formed.
The length of a hall is double its breadth. Its height is 3 m. The area of its four walls (including doors and windows) is 108 m2, find its volume.
A solid cube of side 12 cm is cut into 8 identical cubes. What will be the side of the new cube? Also, find the ratio between the surface area of the original cube and the total surface area of all the small cubes formed.
The volume of a cube is 1331 cm3. Find its total surface area.
The total surface area of a cube is 294cm2. Find its volume.
The base of a rectangular container is a square of side 12 cm. This container holds water up to 2 cm from the top. When a cube is placed in the water and is completely submerged, the water rises to the top and 224 cm3 of water overflows. Find the volume and surface area of the cube.
