Question

Parikshit makes a cuboid of plasticine of side 7cm , 4cm ,7cm.How many such cuboids will be needed to form a cube?
A)112
b)98
c)49
d)64

Answer 1

Step-by-step explanation:

Parikshit makes a cuboid of plasticine of side 7cm , 4cm ,7cm.How many such cuboids will be needed to form a cube?

solution :-

L.C.M of 4. or 7 gives the dimension of the cube to be formed.

L.C.M of 4 and 7 is 28.

Volume of cuboid =7x4x7 = 196 cm3

3

Volume of bigger cube =28 =21952

Number of cuboids required to make the bigger cube =

(Volume of cube) = 21952 = 112

(Volume of cuboid) 196

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