Correct Answer - Option 2 : 500
Concept:
Nominal size of brick = 20 cm × 10 cm × 10 cm ( with mortar)
Calculation:
Nominal size of brick = 20 cm × 10 cm × 10 cm ( with mortar)
So, number of bricks for one cubic meter (1 m3) of brick masonary = \(\frac{{1{m^3}}}{{0.2m \times 0.1m \times 0.1m}}\) = 500