Advertisements
Advertisements
Question
Find the number of bricks of dimension 20 cm × 5 cm × 10 cm required to construct a wall of dimension 300 cm × 200 cm × 20 cm
Advertisements
Solution
Number of bricks = `"Dimension of wall"/"Dimension of brick"`
= `(300 xx 200 xx 20)/(20 xx 5 xx 10)`
= 1200 bricks
APPEARS IN
RELATED QUESTIONS
Find the volume of a cube whose side is 21 cm
A cubical milk tank can hold 125000 litres of milk. Find the length of its side in metres
How long is the side of your cube? ______
How many centimetre cubes can be arranged along its:
Length? ______
Width? ______
Height? ______
Answer Thimpu's questions:
- To make the first layer on the table how many cm cubes will I use? ______
- How many such layers will I need to make a cube? ______
Anan made a big cube having double the side of your paper cube. How many of your paper cubes will fit in it? Try doing it by collecting all the cubes made in your class.
Ganesh and Dinga want to pack 4000-centimeter cubes inboxes. These are to be sent to a school. There are three different boxes available for packing.
- How can Ganesh and Dinga test their guesses before packing the cubes in the boxes? Discuss with your friend.
A cube of side 5 cm is cut into 1 cm cubes. The percentage increase in volume after such cutting is ______.
If a cube fits exactly in a cylinder with height h, then the volume of the cube is ______ and surface area of the cube is ______.
A wooden box (including the lid) has external dimensions 40 cm by 34 cm by 30 cm. If the wood is 1 cm thick, how many cm3 of wood is used in it?
