Question

rahul makes a cuboid of sides 5cm,4cm and 2 cm. how many such cuboid will needed to form a cube? ​

Answer 1

Answer:

AD.

Step-by-step explanation:

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Answer 2

Answer:

200

Step-by-step explanation:

Vol. of cuboid = ( 2×4×5 )$cm^{3}$

= 40 $cm^{3}$

Each side of a cube will be = ( LCM of 4,2 & 5. ) cm

= 20 cm

Therefore, Vol. of cube = 20 x 20 x 20 $cm^{3}$

                                      = 8000 $cm^{3}$

Therefore, No. of cuboids required = $\frac{vol. of cube}{vol. of cuboid}$

= $\frac{8000}{40}$

= 200 cuboid

therefore 200 cuboids are required