Multiple choice

The length, breadth and height of a cuboid are 12 m, 6 m and 5 m, respectively. The cuboid is melted and converted into 10 equal cubes. In this process, 25% of the material is lost. How long will be the edge of each cube?

  1. 2 m

  2. 3 m

  3. 4 m

  4. 6 m

  5. None of these
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Volume of cuboid = 12*6*5 = 360 m3

Material lost = 25% of 360 = 90 m3

So, the remaining material = 360 – 90 = 270 m3

Now, the volume of each cube = 270/10 = 27 m3

So, a3 = 27

a = 3 m

So, the edge of each cube is 3 m.

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