Question

a street lane is to be paved with tile of legnth of 12 cm and breadth 10 cm if legnth is 240m and breadth 12m find the number of tile needed

Answer 1

Length of tile = 12 cm
Breadth of tile = 10 cm
Length of road = 240 m = 24000 cm
Breadth of road = 12 m = 1200 cm

Let 'n' be the number of tile
area of road = area of tile × n
Length × Breadth = Length × Breadth × n
24000 × 1200 = 12 × 10 × n
24000 × 1200/12 × 10 = n
n = 240,000
Ans. the number of tiles needed to make the road = 2,40,000