a metallic cuboid of dimensions 63 cm*35 cm*21 cm is melted and cast into cubes of length 7 cm . find the number of cubes which can be made.
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Step-by-step explanation:
length of cuboid = 63cm
breadth of cuboid = 35 cm
height of cuboid = 21 cm
length of each cube = 7cm
To find : the number of cubes which are melted from cuboid
Let the number of cubes be n
n = volume of cuboid / volume of cubes
n = l×b×h / a×a×a
= 63 × 35 × 21/ 7×7×7
= 9 × 5 × 3
= 135
hence, number of cubes which is melted from cuboid is 135
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