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      Question

      Rohan had a cuboidal box having dimensions of 36 cm ├Ч

      25 cm ├Ч 20 cm. He packed into it as many cubes as possible, each of which has edges 4 cm long. How much space will be still left in the box?
      A 680 cm┬│ Correct Answer Incorrect Answer
      B 780 cm┬│ Correct Answer Incorrect Answer
      C 820 cm┬│ Correct Answer Incorrect Answer
      D 720 cm┬│ Correct Answer Incorrect Answer

      Solution

      Volume of the cuboidal = (36 ├Ч 25 ├Ч 20) cm┬│ Maximum volume of the cubes which can fit into the box. ┬а (36 x 24 ├Ч 20) cm┬│ (24 cm because that is the max dimension of 4 cm that can cover for space of 25 cm) of the cube. Now, the space left (36 x 25 x 20) - (36 ├Ч 24 ├Ч 20) 18000-17280 = 720 cm3 ┬а 720 cm┬│ space will be still left in the box.

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