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Question
How many small cubes with edge of 20 cm each can be just accommodated in a cubical box of 2 m edge?
Options
10
100
1000
10000
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Solution
1000
Explanation:
Volume of cube = (Side)3
Volume of each small cube = 203 = 8000 cm3 = 0.008 m3
Now, volume of the cubical box = 23 = 8 m3
∴ Number of small cubes, that can just be accommodated in the cubical box
= `"Volume of cubical box"/"Volume of small cube"`
= `8/0.008`
= 1000
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