A house, with an area of 36 square decimeters of square paving need 120 fast, if you switch to 4 decimeters of square brick paving, how many pieces do you need?

A house, with an area of 36 square decimeters of square paving need 120 fast, if you switch to 4 decimeters of square brick paving, how many pieces do you need?

The formula is 36 × 120 = 4320 (cm2) 4320 / (4 × 4) = 4320 / 16 = 270 (blocks)