Final Answer:
6 cubes, obtained by dividing the total cubes (24) by cubes along the length (4). Therefore the correct answer is (a).
Step-by-step explanation:
In the given problem, we know that the first layer of cubes in a cuboid has 24 cubes. Since there are 4 cubes along the length, to find the total length, we can divide the total number of cubes in the first layer by the number of cubes along the length. Therefore, 24 cubes / 4 cubes along the length = 6 cubes. Hence, the correct answer is option a, which is 6.
Now, let's break down the explanation further. The total number of cubes in the first layer is analogous to the total length of the cuboid. Dividing this total by the number of cubes along one dimension gives us the length along that dimension. In this case, dividing 24 cubes by 4 cubes along the length gives us the correct length of 6 cubes.
In summary, understanding the relationship between the total number of cubes and the number along one dimension helps us solve the problem efficiently. This mathematical approach simplifies the solution and provides a clear understanding of the spatial arrangement of cubes in the given cuboid.
Therefore the correct answer is (a).