Question

a floor 10m long and 7m broad is to be paved with square tiles of side 0.5 m. find the number of tiles required

Answer 1

Length of the floor = 10 m

breadth of the floor = 7 m

area of the floor (A₁) = length × breadth = 10 × 7 = 70 m²

side of each square tile = 0.5 m

area of each square tile (A₂) = side × side = 0.5 × 0.5 = 0.25 m²

number of tiles required = A₁ / A₂ = 70 / 0.25 = 7000 / 25 = 280