Question

1. A school has decided to cover the floor of the
staffroom with square tiles. The room is 22 m long
and 14 m wide. If the side of a tile measures 40 cm,
then how many tiles will be needed to cover the
whole floor?​

Answer 1

Answer 1925

so tile is needed =(22 × 14) / 0.4 × 0.4 mt

= 308 / 0.16

= 1925

Answer 2

the total area of the room's floor is (2200×1400)=3080000 square cm

and the area of one tile is 40×40=1600 square cm

so we need (3080000÷ 1600)=1925 tiles to cover the whole floor.