We know that 1m³ = 500 nos. of bricks
then 1500m³ = 1500*500 = 750000bricks
D.) 750000 ans

To calculate the number of nominal bricks required for a given volume of brickwork, we need to consider the dimensions of the bricks and the volume of the brickwork.

The volume of the brickwork can be calculated by multiplying the length, width, and height of the brickwork. Let's assume the dimensions of the brickwork are as follows:

Length = L
Width = W
Height = H

Given that the volume of the brickwork is 1500 m3, we can write the equation as:

Volume of brickwork = L x W x H

Now, we need to consider the dimensions of the nominal brick. Let's assume the length, width, and height of the nominal brick are as follows:

Length of nominal brick = l
Width of nominal brick = w
Height of nominal brick = h

To calculate the number of nominal bricks required, we need to divide the volume of the brickwork by the volume of one nominal brick. The volume of one nominal brick can be calculated by multiplying its length, width, and height. So, the equation becomes:

Number of nominal bricks required = (L x W x H) / (l x w x h)

It is important to note that the dimensions of the brickwork and the nominal brick should be in the same unit, in this case, meters (m).

Given that the correct answer is option 'D' which states 750,000 nominal bricks, we can conclude that the dimensions and calculations mentioned above, along with the given volume of brickwork, lead to this result.

It is important to double-check the calculations and ensure that all the given dimensions are accurate to get the correct answer.