Question

a cuboidal wooden block size 32 cm ×12 cm × 4 cm is cut into some cuboidal blocks of the same size if each cuboidal block measure 4 cm what is total number of these blocks formed ​

Answer 1

Answer:

Answer

Correct option is

C

7:24

Number of cubes =VolumeofcubeVolumeofcuboid=1×1×18×4×2=64

Surface area of cuboid =2×(8×4+4×2+2×8)cm2

=2×(32+8+16)cm2=112cm2

Surface area of 64 cubes =64×6cm2=384cm2

∴ Required ratio =384112=247=7:24