Rohit makes a cuboid of dimensions 5cm,2cm and 5cm using clay. How many such cuboids will he need,to make a perfect cube?
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12
Answer:
20
Step-by-step explanation:
L.C.M. of 5 and 2 gives the dimension of the cube to be formed.
L.C.M. of 5 and 2 is 10.
Volume of cuboid =5×5×2=50cm
3
Volume of bigger cube = 10³= 1000
Number of cuboids required to make the bigger cube = (Volume of a cuboid)/(Volume of cube)
= 1000/50
=20
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