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07-09-2018
Mathematics

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Sara makes a cuboid having sides 15cm and 30cm .how many such cuboids will be needed to form a cube

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AsapWenesday AsapWenesday

07-09-2018

cuboid=3*3*5 [i.e l*b*h]

LCM of 3,5=15

i.e 15cm is the dimension of the final cube.

therefore cuboid required across length=15/3=5

similarly, across breadth=15/3=5

similarly, across height=15/5=3

Therefore total no of cuboid=5*5*3=75

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