A stage 10 m long, 5 m wide and 2 m high has to be constructed by using bricks. Find the number of bricks required, if a brick measures 25 cm by 10 cm by 5 cm
Answers
Topic
Volume
Given
A stage 10 m long, 5 m wide and 2 m high has to be constructed by using bricks.
To Find
The number of bricks of 25 cm in length, 10 cm wide and 5 cm high required to make the stage.
Method
We will first calculate volume of the stage and brick and then we will use it to to calculate number of bricks.
Formula
Volume of Cuboid = L × B × H
where
L is length of Cuboid
B is width of Cuboid
H is height of Cuboid
N = Volume of stage / Volume of brick
where
N is number of bricks.
Solving
We need to calculate number of bricks such that their volume sum up to volume of stage.
So,
Volume of Stage = 10m × 5m × 2m
Volume of Stage = 100m³
Volume of Brick = 25cm × 10cm × 5cm
Volume of Brick = 0.25m × 0.1m × 0.05m
Volume of Brick = 0.00125m³
Note :- Volume will be in same units.
N = Volume of stage / Volume of brick
N = 100 / 0.00125
N = 80000
Answer
So, 80000 bricks are required to make the stage.
Learn More :-
Cuboid
Total Surface area = 2( LB + BH + HL )
where
L is Length, B is Width and H is Height.
All interior angles are right angle.