Advertisements
Advertisements
प्रश्न
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
उत्तर
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
संबंधित प्रश्न
What will happen to the volume of a cube, if its edge is trebled?
A cube A has side thrice as long as that of cube B. What is the ratio of the volume of cube A to that of cube B?
Find the volume in cubic decimetre of the cube whose side is 1.5 m.
Find the surface area of a cube whose volume is 343 m3.
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.
A square plate of side 'x' cm is 8 mm thick. If its volume is 2880 cm3; find the value of x.
The edges of three solid cubes are 6 cm, 8 cm, and 10 cm. These cubes are melted and recast into a single cube. Find the edge of the resulting cube.
Three cubes of sides x cm, 8cm and 10cm respectively are melted and formed into a single cube of edge 12cm, Find 'x'.
Find the T.S.A and L.S.A of the cube whose side is 8 m
