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A cuboid shaped wooden block has 4 cm length, 3 cm breadth and 5 cm height.
Two sides measuring 5 cm x 4 cm are coloured in red.
Two faces measuring 4 cm x 3 cm are coloured in blue.
Two faces measuring 5 cm x 3 cm are coloured in green.
Now the block is divided into small cubes of side 1 cm each.
How many small cubes will have no faces coloured ?

A. None B. 2
C. 4 D. 6

Read Solution (Total 2)

D. 6 cubes will have no faces coloured.

Reason :
Required number of small cubes = (5 - 2) x (4 - 2) x (3 - 2)
= 3 x 2 x 1
= 6
13 years agoHelpfull: Yes(8) No(3)

d.6
since at the center there will be 10 cubes
with that 4 will be coloured as red
remove that 4 from 10 you will get 6
(i.e 10-4=6)
13 years agoHelpfull: Yes(1) No(2)

CTS Other Question

here is a cuboid whose dimensions are 4 x 3 x 3 cm.
The opposite faces of dimensions 4 x 3 are coloured yellow.
The opposite faces of other dimensions 4 x 3 are coloured red.
The opposite faces of dimensions 3 x 3 are coloured green.
Now the cuboid is cut into small cubes of side 1 cm.

How many small cubes will have only two faces coloured ?

A. 12 B. 24
C. 16 D. 12 All the faces of cubes are painted with red colour.
The cubes is cut into 64 equal small cubes.How many small cubes are there whose three faces are coloured ?

A. 4 B. 8
C. 16 D. 24