A block of wood is in the form of a cube, its
edge is 5 m. How many rectangular pieces of
dimension 20 cm x 10cm x10 cm can be cut
from the block?
(b) 62
(d) 62500
(c) 6200
(a) 620
0/ or
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A block of wood is in the form of a cube, its
edge is 5 m. How many rectangular pieces of
dimension 20 cm x 10cm x10 cm can be cut
from the block?
(b) 62
(d) 62500
(c) 6200
(a) 620
0/ or
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Answer:
volume of cube=side^3
=4×4×4
=64m²
volume of rectangular piece=l×b×h
=20×10×5
=1000cm²
=10m²
no. of rectangular pieces can be cut from the cube=64/10
=6.4
hence, final answer is 6.4 pieces can be cut from the cube.
Given
A block of wood is in the form of a cube, its edge is 5 m and Block dimension is :-
We Find
How many rectangular pieces of dimension 20 cm x 10cm x10 cm can be cut from the block?
We Know
1 m = 100 cm , So 5 m = 500 cm
Volume of Cube = Edge³
Volume of Cube = 500³ cm
Volume of Cube = 125000000 cm³
So, Volume of Cube is 125000000 cm³
Volume of pieces = 20 cm x 10cm x 10 cm
Volume of pieces = 2000 cm³
So, Volume of pieces is 2000 cm³
Now, According to the question
We Find, How many rectangular pieces can cut from the block :-
= Volume of Block / Volume of pieces
= 125000000 / 2000
= 62,500
Hence, 62,500 rectangular pieces can cut from the block.