Question

a block of wood is in the form of a cube and its edge is 4 metre how many cuboidal
pieces of size 20 into 10 cm into 5 cm can be cut from the block if there is no wastage of wood ​

Answer 1

Answer:

Volume will remain same as there is no wastage...

volume of cube

${l}^{3} = 4 \times 4 \times 4$

$= 64 {m}^{3}$

volume of one cuboid

$lbh = 20 \times 10 \times 5$

$= 1000 {cm}^{3}$

$now$

$64{m}^{3} = x {cm}^{3}$

$x = 6400000 {cm}^{3}$

$therefore$

Let y be the number of cuboids

$6400000 = y\times 1000$

$y = \frac{6400000}{1000}$

$y = 6400$

Hence 6400 cuboid will be formed

Hope it helps...

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